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1080607 - A1
Class - X
·¤ÿææ - X
SCIENCE
çߙææÙ
Time : 3 to 3½ hours
â×Ø Ñ 3 âð 3½ ƒæ´ÅðU
Maximum Marks : 80
¥çÏ·¤Ì× ¥´·¤ Ñ 80
Total No. of Pages : 19
·é¤Ü ÂëcÆUæð´ ·¤è ⴁØæ Ñ 19
General Instructions :
1.
The question paper comprises of two sections, A and B, you are to attempt both the sections.
2.
All questions are compulsory.
3.
There is no overall choice. However, internal choice has been provided in all the three questions
of five marks category. Only one option in such question is to be attempted.
4.
All questions of section A and all questions of section B are to be attempted separately.
5.
Question numbers 1 to 4 in section A are one mark questions. These are to be answered in
one word or one sentence.
6.
Question numbers 5 to 13 are two mark questions, to be answered in about 30 words.
7.
Question numbers 14 to 22 are three mark questions, to be answered in about 50 words.
8.
Question numbers 23 to 25 are five mark questions, to be answered in about 70 words.
9.
Question numbers 26 to 41 in section B are multiple choice questions based on practical
skills. Each question is a one mark question. You are to choose one most appropriate response
out of the four provided to you.
10. An additional 15 minutes time has been allotted to read this question paper only.
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1
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Section - A
1.
Which one is a stronger acid, with pH55 or with pH52 ?
1
2.
Construction of dams submerges large areas of forests, how does this contribute to the
green house effect ?
1
3.
What is the lowest resistance that can be obtained by combining four coils of resistors
of 4 : , 8 : , 12 : and 24 : ?
1
4.
If copper metal is heated over a flame, it develops a coating. What is the colour and
composition of this coating ?
1
5.
What change will you observe if white silver chloride is placed in sunlight ? Write an
equation for the reaction and the type of the reaction.
2
6.
Will current flow more easily through a thick wire or a thin wire of the same material,
when connected to the same source ? Why ? Name the factors on which the resistance
of a wire depends.
2
7.
Write the general principle involved in generating nuclear energy. Name one fuel used
in a nuclear reactor.
2
8.
What is a solenoid ? Draw a sketch to show the pattern of field lines due to a solenoid
carrying current.
2
9.
What is the function of the trachea ? Why do its walls not collapse even when there is
less air in it ?
2
10.
A chemical compound having a strong smell of chlorine is used to disinfect water.
Name the compound and write a chemical equation to show its preparation. Give its
one uses.
2
11.
What are olfactory indicators ? Dry HCl gas does not change the colour of dry blue
litmus. Give reason.
2
12.
An electric lamp is marked 220V, 100W. It is used for 5 hours daily. Calculate
(a) Its resistance while glowing
(b) Energy consumed in kWh/day.
2
13.
Most metals do not react with bases, but Zinc metal does. Suggest a reason. Write an
equation for the reaction between Zn and NaOH.
2
14.
Giving a schematic diagram of bio-gas plant explain the production of bio-gas and
manure. Give the composition of bio-gas.
3
1080607 - A1
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15.
Draw a neat labelled diagram of a neuron.
3
16.
Explain why :
(a) Colour of copper sulphate crystals changes on heating ?
(b) Baking soda acts as an antacid ?
(c) An acid should be added to water while diluting ?
3
17.
Name a harmone secreted by (a) Pancreas (b) Pituitary (c) Thyroid. Write one function
of each of the harmones.
3
3
18.
(a)
(b)
For the circuit shown above in the diagram, calculate :
(i)
Value of current through the 30V resistor.
(ii) Total resistance of the circuit.
Give two advantages of connecting electrical devices in parallel with battery.
19.
A, B, and C are three elements which undergo chemical reactions according to the
following equations.
A2O3 1 2B o B2O3 1 2A
3CSO4 1 2B o B2 (SO4)313C
3CO12A o A2O3 1 3C
Answer the following questions with reasons :
(a) Which element is the most reactive ?
(b) Which element is the least reactive ?
(c) What is the type of reactions listed above ?
3
20.
(a)
Describe an activity to draw a magnetic field line outside a bar magnet from one
pole to another.
List any two properties of magnetic field lines.
3
Electric fuse is an important component of all domestic circuits. Why ?
An electric oven of rating 2 kW, 220V is operated in a domestic circuit with a
current rating of 5A. What result would you expect ? Explain.
3
(b)
21.
(a)
(b)
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22.
What is Redox reaction ? Identify the substance oxidised and the substance reduced in
the following reactions :
(i)
23.
(ii)
MnO2 1 4HCl o MnCl2 12H2O 1 Cl2
CuO 1H2 o Cu 1H2O
(a)
Draw a diagram of human alimentary canal and label on it :
(i)
(b)
gall bladder
(ii)
liver
(iii)
pancreas
(iv)
5
small intestene.
What is emulsification of fats? Why is it necessary ?
‘OR
24.
5
(a)
Draw the human excretory system and label :
(b)
(i)
Kidney
(ii) Aorta
(iii) Ureter
(iv) Urinary bladder.
What is the purpose of sending blood to the kidney’s for filtration ?
(a)
State ohm’s law. Express it mathematically.
(b)
Write symbols used in electric circuits to represent :
(i)
(c)
3
Variable resistance
(ii)
5
Voltmeter.
An electric bulb is rated 220V and 100W. When it is operated on 110V, what will
be the power consumed ?
‘OR’
25.
(a)
Why is the series arrangement not used for domestic circuits ?
(b)
Why is the tungsten used almost exclusively for filament of electric lamps ?
(c)
Why are the conductors of electric heating devices such as bread toasters and
electric irons made of an alloy rather than a pure metal ?
(d)
Why are copper and aluminium wires usually employed for electricity
transmission ?
(e)
Why does the cord of an electric heater not glow while the heating element does ?
(a)
Show the formation of MgO by the transfer of electrons.
(b)
Name the cation and anion.
(c)
Write three properties of ionic compounds.
5
5
‘OR’
Give reason for the following -
5
(i)
Gold and platinum are used in jewellary.
(ii)
Copper cannot displace hydrogen from dilute acids.
(iii)
Stainless steel does not rust easily.
(iv)
Metals can be given different shapes according to our needs.
(v)
Zinc does not give hydrogen gas on reacting with HNO3.
1080607 - A1
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Section - B
26.
27.
28.
Four students were asked to test the pH of four samples as shown under. Whose result
is reported correctly ?
Stude nt
W a te r
Etha noic a cid
H Cl
N aO H
(a )
(b)
(c)
(d)
7
7
7
7
1
3
1
3
1
1
1
1
1
1
13
13
The colours obtained on a pH paper for a highly acidic, basic and neutral solutions are :
(a)
blue, orange, green
(b)
yellow, blue, green
(c)
red, blue, green
(d)
red, green, blue
A student added dil HCl to a test tube containing Zinc granules and made following
observations.
(I)
The surface of Zinc becomes black.
(II)
A gas evolved which burnt with a pop sound.
1
1
1
(III) The solution remains colourless.
The correct observations are :
29.
(a)
I and II
(b)
I and III
(c)
II and III
(d)
I, II and III
Four students performed the reactions of a dilute hydrochloric acid and a solution of
sodium hydroxide with zinc metal and solid sodium carbonate separately. They reported
the possible reaction by (3) and no reaction by (5). In which of the following sets all
observations are correct.
Set
(a)
(b)
(c)
(d)
1080607 - A1
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HCl + Zn HCl + Na 2CO 3 NaOH + Zn NaOH + Na 2CO 3
5
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30.
31.
For the circuits in figures I and II, the voltmeter reading would be :
(a)
2V in circuit I and OV in circuit II
(b)
OV in both circuits
(c)
2V in both circuits
(d)
OV in circuit I and 2V in circuit II
1
The positive and negative terminal markings are missing on a given battery eliminator.
The correct terminal markings can best be identified by the arrangement shown in :
(a)
Fig A
1080607 - A1
(b)
Fig A and B
(c)
Fig B and C
(d)
Fig C and A
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32.
Two students are using the two circuits shown below. They are doing experiment to
find the equivalent resistance of a :
(a)
(b)
(c)
(d)
33.
1
Series combination and a parallel combination respectively, of the two given
resistors.
Parallel combination and a series combination respectively of the two given resistors.
Series combination of the two given resistors in both the cases.
Parallel combination of the two given resistors in both the cases.
A student has to connect 4 cells of 1.5V each to form a battery of voltage 6V.
1
The correct way of connecting these cells is shown in figure :
(a) A
(b) B
(c) C
(d) D
34.
For the circuits shown in fig I and II, the ammeter readings would be :
(a)
(c)
IA in circuit I and OA in circuit II
IA in both circuits
1080607 - A1
(b)
(d)
7
1
OA in both circuits
OA in circuit I and IA in circuit II
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35.
36.
Select the correct labelling for the following diagram.
(a)
(1)
epidermal cells
(2)
guard cells
(3)
stoma
(b)
(1)
epidermal cells
(2)
stoma
(3)
guard cells
(c)
(1)
guard cells
(2)
stoma
(3)
epidermal cells
(d)
(1)
stoma
(2)
epidermal cells (3)
guard cells
Given here is a sketch of a leaf partially covered with black paper and which is to be
used in the experiment to show that light is necessary for the process of photosynthesis.
At the end of the experiment which one of the leaf parts labelled I, II and III will
become blue black when dipped in iodine solution.
(a)
37.
1
I only
(b)
II only
(c)
I and III
(d)
II and III
The teacher instructed a student to place a potted plant in dark for 24 hours prior to an
experiment on photosynthesis. The purpose of placing it in a dark room is to :
(a)
increase intake of oxygen
(b)
activate chloroplast in leaves
(c)
destarch leaves
(d)
denature the enzymes in leaves
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38.
In the experiment shown in the figure, water is found to rise in the bent tube :
1
The reason is that :
39.
(a)
Seeds use up oxygen in the flask
(b)
Carbon dioxide is given out by the germinating seeds
(c)
Germinating seeds attract water from the beaker
(d)
Seeds use oxygen and release carbondioxide which is absorbed by potassium
hydroxide
A student performed the starch test on a leaf some steps involved are shown below.
1
The correct sequence of steps should be :
(a)
(iv), (iii), (ii), (i)
(b)
(i), (ii), (iii), (iv)
(c)
(ii), (iii), (iv), (i)
(d)
(i), (iii), (iv), (ii)
1080607 - A1
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40.
41.
When an iron nail is placed in copper sulphate solution the observations noted are as
follows :
(a)
The solution turns light green
(b)
A brown deposit is formed on the nail
(c)
both (a) and (b)
(d)
none of the above
The stain used to see the stomata in the temporary mount of a leaf peel is :
(a)
safranin
(b)
methylene blue
(c)
cotton blue
(d)
acetocarmine
-oOo-
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Öæ»-¥
1.
·¤æñÙ ¥çÏ·¤ ÂýÕÜ ¥Ü ãñ - Áèâ·¤æ pH55 ãñ ¥Íßæ çÁâ·¤æ pH52 ãñ?
1
2.
Õæ´Ïæð´ ·¤æ çÙ×æü‡æ ·¤ÚUÙð ÂÚU ßÙæð´ ·¤æ çßàææÜ ÿæð˜æ ÁÜׂ٠ãæð ÁæÌæ ãñÐ Øð »ýèÙ ãæ©â ÂýÖæß ×ð´ ç·¤â Âý·¤æÚU
Øæð»ÎæÙ ÎðÌð ãñ´?
1
3.
4V, 8V, 12V ÌÍæ 24V ·ð¤
ÂýçÌÚUæðÏ·¤æð´ ·ð¤ â´ØæðÁÙ âð ·¤×âð ·¤× ç·¤ÌÙæ ÂýçÌÚUæðÏ Âýæ# ç·¤Øæ Áæ â·¤Ìæ ãñ?
1
4.
ØçÎ ·¤æòÂÚU ÏæÌé ·¤æð ’ßæÜæ ÂÚU ÌŒÌ ·¤Úð´U Ìæð §â ÂÚU °·¤ ÂÚUÌ ÕÙ ÁæÌè ãñÐ §â ÂÚUÌ ·¤æ Ú´U» ÌÍæ ⴃæÅUÙ €Øæ ãñ?
1
5.
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2
6.
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çßléÌ ÏæÚUæ ÂýßæçãÌ ãæð»è ¥æñÚU €Øæð´Ð ©Ù ·¤æÚU·¤æð´ ·¤æ ©ËÜð¹ ·¤èçÁ° çÁÙ ÂÚU ç·¤â ÌæÚU ·¤æ ÂýçÌÚUæðÏ çÙÖüÚU
·¤ÚUÌæ ãñÐ
2
7.
ÙæçÖ·¤èØ ª¤Áæü ©ˆÂóæ ·¤ÚUÙð ·¤æ âæ×æ‹Ø çâhæ‹Ì çÜç¹°Ð ÙæçÖ·¤èØ çÚU°€ÅUÚU ×ð´ ©ÂØæð» ãæðÙð ßæÜð ç·¤âè °·¤
§ZÏÙ ·¤æ Ùæ× çÜç¹°Ð
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8.
ÂçÚUÙæçÜ·¤æ €Øæ ãñ? ç·¤âè ÏæÚUæßæãè ÂçÚUÙæçÜ·¤æ ·¤è ¿éÕ·¤èØ ÿæð˜æ ÚðU¹æ¥æð´ ·¤æ ÂñÅUÙü ¥æÚðU¹ ¹è´¿·¤ÚU Îàææü§°Ð
2
9.
àßæâÙÜè ·¤æ €Øæ ·¤æØü ãñ? ÁÕ §â×ð´ ·¤× ßæØé ãæðÌè ãñ ÌÕ §â·¤è çÖçžæØæ´ çÙÂçÌUÌ (çߊߴâ) €Øæð´ Ùãè´
ãæðÌè?
2
10.
·¤æð§ü ÚUæâæØçÙ·¤ Øæñç»·¤ çÁââð €ÜæðÚUèÙ ·¤è Ìèßý »´Ï ¥æÌè ãñ ÁÜ ·¤æð çßâ´·ý¤ç×Ì ·¤ÚUÙð ×ð´ ©ÂØæð» ãæðÌæ ãñÐ §â
Øæñç»·¤ ·¤æ Ùæ× çÜç¹° ¥æñÚU §â·ð¤ ÕÙæÙð ·¤æð ÎàææüÙð ßæÜè ÚUæâæØçÙ·¤ â×è·¤ÚU‡æ çÜç¹°Ð §â·ð¤ °·¤ ·¤æØü ·¤æ
©ËÜð¹ ·¤èçÁ°Ð
2
11.
»´ÏèØ âê¿·¤ €Øæ ãñ´? àæéc·¤
çÜç¹°Ð
2
1080607 - A1
HCl »ñâ
àæéc·¤ ÙèÜð çÜÅU×â ·ð¤ Ú´U» ·¤æð ÂçÚUßçÌüÌ Ùãè´ ·¤ÚUÌæÐ §â·¤æ ·¤æÚU‡æ
11
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12.
ç·¤âè çßléÌ ÜñÂ çÁâ ÂÚU 220V, 100W ¥´ç·¤Ì ãñ ·¤æ ÂýçÌçÎÙ 5 ƒæ‹ÅðU ©ÂØæð» ç·¤Øæ ÁæÌæ ãñÐ çِÙçÜç¹Ì
·¤æ ÂçÚU·¤ÜÙ ·¤èçÁ° Ñ
(a)
¿×·¤Ìð â×Ø ÕËÕ ·¤æ ÂýçÌÚUæðÏ
(b)
ÕËÕ mæÚUæ ÂýçÌçÎÙ ©ÂØé€Ì ª¤Áæü
2
(kWh ×ð´)
13.
¥çÏ·¤æ´àæ ÏæÌé°´ ÿææÚU·¤æð´ âð ¥çÖçR¤Øæ Ùãè´ ·¤ÚUÌè ÂÚU çÁ´·¤ ÿææÚU·¤æð´ âð ¥çÖçR¤Øæ ·¤ÚUÌè ãñÐ §â·¤æ °·¤ ·¤æÚU‡æ
çÜç¹°Ð Zn ·¤è NaOH âð ¥çÖç·ý¤Øæ ·¤æ ÚUæâæØçÙ·¤ â×è·¤ÚU‡æ çÜç¹°Ð
2
14.
ÕæØæð»ñâ â´Ø´˜æ ·¤æ ÃØßSÍæ ¥æÚðU¹ ¹è´¿·¤ÚU §â×ð´ ÕæØæð»ñâ ÌÍæ ¹æÎ ÕÙÙð ·¤è ÃØæØæ ·¤èçÁ°Ð ÕæØæð»ñâ ·¤æ
ⴃæÅUÙ çÜç¹°Ð
3
15.
‹ØêÚUæòÙ ·¤æ SߑÀU Ùæ×æ´ç·¤Ì ¥æÚðU¹ ¹è´ç¿°Ð
3
16.
ÃØæØæ ·¤èçÁ° ç·¤ °ðâæ €Øæð´ ãæðÌæ?
3
17.
(a)
»×ü ·¤ÚUÙð ÂÚU ·¤æòÂÚU âËÈð¤ÅU ç·ý¤SÅUÜæð´ ·¤æ Ú´U» ÂçÚUßçÌüÌ ãæð ÁæÌæ ãñÐ
(b)
Õðç·´¤» âæðÇUæ °ð´ ÅñUçâÇU ·ð¤ M¤Â ×ð´ ·¤æØü ·¤ÚUÌæ ãñÐ
(c)
ÌÙé·ë¤Ì ·¤ÚUÌð â×Ø ÁÜ ×ð´ ¥Ü ·¤æð ç×ÜæÙæ ¿æçã°Ð
(a) ¥‚‹ØæàæØ (b) ÂèØêá»ý´çÍ (c) ¥ßÅêU»ý´çÍ
·¤æØü çÜç¹°Ð
mæÚUæ S˜ææçßÌ ãæò×æðüÙ ·¤æ Ùæ× çÜç¹°Ð §Ù×ð´ ÂýˆØð·¤ ãæò×æðüÙ ·¤æ °·¤
18.
3
3
(a)
(b)
ª¤ÂÚU Îàææü° »° çßléÌ ÂçÚUÂÍ ·ð¤ çÜ° çِÙçÜç¹Ì ·¤æ ÂçÚU·¤ÜÙ ·¤èçÁ° Ñ
(i)
30V ÂýçÌÚUæðÏ·¤
âð ÂýßæçãÌ ÏæÚUæ ·¤æ ×æÙ
(ii)
ÂçÚUÂÍ ·¤æ ·é¤Ü ÂýçÌÚUæðÏ
çßléÌ âæçϘææð´ ·¤æð ÕñÅUÚUè âð Âæàßü ×ð´ â´ØæðçÁÌ ·¤ÚUÙð ·ð¤ Îæð ÜæÖ çÜç¹°Ð
1080607 - A1
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19.
Ìè٠̈ß
A, B ÌÍæ C Ùè¿ð
Îè »Øè´ ÚUæâæØçÙ·¤ â×è·¤ÚU‡ææ𴠷𤠥ÙéâæÚU ÚUæâæØçÙ·¤ ¥çÖç·ý¤Øæ ·¤ÚUÌð ãñ´ Ñ
3
A2O312B o B2O312A
3CSO412B o B2(SO4)313C
3CO12A o A2O313C
·¤æÚU‡æ âçãÌ çِÙçÜç¹Ì ÂýàÙæ𴠷𤠩žæÚU ÎèçÁ° Ñ
20.
21.
22.
23.
(a)
·¤æñÙ âæ Ìˆß âÕâð ¥çÏ·¤ ¥çÖç·ý¤ØæàæèÜ ãñ?
(b)
·¤æñÙ âæ Ìˆß âÕâð ·¤× ¥çÖç·ý¤ØæàæèÜ ãñ?
(c)
ª¤ÂÚU ÎàæüØè »Øè ¥çÖç·ý¤Øæ¥æð´ ·¤æ Âý·¤æÚU €Øæ ãñ?
(a)
ç·¤âè ÀUǸ ¿éÕ·¤ ·ð¤ ÕæãÚU °·¤ Ïýéß âð ÎêâÚðU Ïýéß ÌÕ ¿éÕ·¤èØ ÿæð˜æ ÚðU¹æ ¹è´¿Ùð ·ð¤ çÜ° ç·¤âè
ç·ý¤Øæ·¤Üæ ·¤æ ߇æüÙ ·¤èçÁ°Ð
(b)
¿éÕ·¤èØ ÿæð˜æ ÚðU¹æ¥æð´ ·ð¤ ç·¤‹ãè´ Îæð »é‡ææð´ ·¤è âê¿è ÕÙ槰Ð
(a)
çßléÌ ØêÁ ÂýˆØð·¤ ƒæÚðUÜê ÂçÚUÂÍ ·¤æ °·¤ ×ãˆßÂê‡æü ¥ßØß ãæðÌæ ãñÐ €Øæð´?
(b)
2 kW, 220V ¥Ùé×Ìæ´·¤
3
·¤è çßléÌ Ö^è 5A ÏæÚUæ ¥Ùé×Ìæ´·¤ ·ð¤ ƒæÚðUÜê ÂçÚUÂÍ ×ð´ Âý¿æçÜÌ ·¤è ÁæÌè ãñÐ
¥æ 緤â ÂçÚU‡ææ× ·¤è ¥Âðÿææ ·¤ÚUÌð ãñ´? ÃØæØæ ·¤èçÁ°Ð
ÚðUÇUæò€â ¥çÖç·ý¤Øæ €Øæ ãñ? Ùè¿ð Îè »Øè ÚUæâæØçÙ·¤ ¥çÖç·ý¤Øæ¥æð´ ×𴠩¿çØÌ ÂÎæÍü ÌÍæ ¥Â¿çØÌ ÂÎæÍü
·¤è Âã¿æÙ ·¤èçÁ° Ñ
(i)
MnO2 1 4HCl o MnCl212H2O1Cl2
(ii)
CuO1H2 o Cu1H2O
(a)
×æÙß Âæ¿Ù Ì´˜æ ·¤æ ¥æÚðU¹ ¹è´¿·¤ÚU ©â ÂÚU çِÙçÜç¹Ì ·¤æð Ùæ×æ´ç·¤Ì ·¤èçÁ°Ð
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(b)
3
çžææàæØ
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Ø·ë¤Ì
(iii)
¥‚‹ØæàæØ
(iv)
3
5
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ßâæ ·¤æ §×Ëâè·¤ÚU‡æ €Øæ ãñ? Øã ¥æßàØ·¤ €Øæð´ ãñ?
¥Íßæ
(a)
×æÙß ©ˆâÁüÙ Ì´˜æ ·¤æ ¥æÚðU¹ ¹è´¿·¤ÚU ©â ÂÚU çِÙçÜç¹Ì ·¤æ Ùæ×æ´·¤Ù ·¤èçÁ° Ñ
(i)
(b)
ß뀷¤
(ii)
×ãæÏ×Ùè
(iii)
×ê˜æU ×æ»ü
(iv)
×ê˜ææàæØ
çÙS؋ÎÙ ·ð¤ çÜ° L¤çÏÚU ·¤æð ß뀷¤æð´ Ì·¤ ÖðÁÙð ·¤æ €Øæ ©gðàØ ãæðÌæ ãñ?
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24.
(a)
(b)
(c)
(a)
(b)
(c)
(d)
(e)
25.
26.
¥æð× ·¤æ çÙØ× çÜç¹°Ð §âð »ç‡æÌèØ M¤Â ×ð´ ÃØ€Ì ·¤èçÁ°Ð
çßléÌ ÂçÚUÂÍæð´ ×ð´ Ñ
(i) ÂçÚUßÌèü ÂýçÌUÚUæðÏ
(ii) ßæðËÅU×èÅUÚU ·¤æð çÙM¤çÂÌ ·ð¤ çÜ° ©ÂØæð» ç·¤° ÁæÙð ßæÜð ÂýÌè·¤ çÜç¹°Ð
ç·¤âè çßléÌ ÕËÕ ·¤æ ¥Ùé×Ìæ´·¤ 100W; 220V ãñÐ §âð 110V ÂÚU Âý¿æçÜÌ ·¤ÚUÙð ÂÚU ©ÂØé€Ì àæç€Ì
€Øæ ãæð»è?
¥Íßæ
ƒæÚðUÜê ÂçÚUÂÍæð´ ×𴠟æð‡æè ÃØßSÍæ ·¤æ ©ÂØæ𻠀Øæð´ Ùãè´ ç·¤Øæ ÁæÌæ?
çßléÌ ÜñÂæð´ ·ð¤ ̋Ìé¥æð´ ·ð¤ çÙ×æü‡æ ÂýæØÑ °·¤×æ˜æ Å´U»SÅUÙ ·¤æ ãè ©ÂØæ𻠀Øæð´ ç·¤Øæ ÁæÌæ ãñ?
çßléÌ ÌæÂÙ Øéç€ÌØæð´ Áñâð ÕñýÇU ÅUæðSÅUÚ ÌÍæ çßléÌ §SÌÚUè ·ð¤ ¿æÜ·¤ àæéh ÏæÌé¥æð´ ·ð¤ Ù ÕÙæ·¤ÚU
çןæÏæÌé¥æ𴠷𤠀Øæð´ ÕÙæ° ÁæÌð ãñ´?
çßléÌ â´¿æÚU‡æ ·ð¤ çÜ° ÂýæØÑ ·¤æòÂÚU ÌÍæ °ðÜéç×çÙØ× ·ð¤ ÌæÚUæð´ ·¤æ ©ÂØæ𻠀Øæð´ ç·¤Øæ ÁæÌæ ãñ?
ç·¤âè çßléÌ ãèÅUÚU ·¤æ ÌæÂÙ ¥ßØß ÏæÚUæ ÂýßæçãÌ ·¤ÚUÙð ÂÚU ©žæŒÌ ãæðÙð Ü»Ìæ ãñ Ìæð çȤÚU ©â·¤è ÇUæðÚUè
©žæŒÌ €Øæð´ Ùãè´ ãæðÌè?
§Üð€ÅþUæòÙ SÍæÙæ‹ÌÚU‡æ mæÚUæ MgO ÕÙÙæ Îàææü§°Ð
(b) ·ñ¤ÅUæØÙ ÌÍæ °ÙæØÙ ·¤æ Ùæ× çÜç¹°Ð
(c) ¥æØÙè Øæñç»·¤æð´ ·ð¤ ÌèÙ »é‡æ çÜç¹°Ð
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çِÙçÜç¹Ì ·ð¤ ·¤æÚU‡æ çÜç¹° Ñ
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¥æÖêá‡ææð´ ×ð´ âæðÙð ÌÍæ ŒÜñçÅUÙ× ·¤æ ©ÂØæð» ç·¤Øæ ÁæÌæ ãñÐ
(ii) ÌÙé ¥Üæð´ âð ·¤æòÂÚU ãæ§ÇþUæðÁÙ ·¤æð çßSÍæçÂÌ Ùãè´ ·¤ÚU â·¤ÌæÐ
(iii) SÅðUÙÜðâ SÅUèÜ ÂÚU ¥æâæÙè âð Á´» Ùãè´ Ü»ÌæÐ
(iv) ÏæÌé¥æð´ ·¤æð ¥æßàØ·¤ÌæÙéâæÚU çßçÖóæ ¥æ·ë¤çÌØæ´ Îè Áæ â·¤Ìè ãñ´Ð
(v) HNO3 âð ¥çÖç·ý¤Øæ ·¤ÚUÙð ÂÚU çÁ´·¤ ãæ§ÇþUæðÁÙ »ñâ Ùãè´ ÎðÌæÐ
5
(a)
5
Öæ»-Õ
¿æÚU ÀUæ˜ææð´ âð Ùè¿ð çΰ »° ¿æÚU Ù×êÙæð´ ·ð¤ pH ·¤æ ÂÚUèÿæ‡æ ·¤ÚUÙð ·ð¤ çÜ° ·¤ãæ »ØæÐ ç·¤âÙð âãè ÂçÚU‡ææ× ÙæðÅU
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¢ÈzÈ £¾ ’¯Ò»Èԉ™†‡r¾
(a)
(b)
(c)
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7
7
7
7
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HCl NaOH
1
1
1
1
1
1
13
13
14
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27.
28.
pH ˜æ
ÂÚU ¥ˆØçÏ·¤ ¥ÜèØ, ÿææÚU·¤èØ ÌÍæ ©ÎæâèÙ çßÜØÙæð´ mæÚUæ çΰ ÁæÙð Ú´U» ·ý¤×àæÑ ãæðÌð ãñ´ Ñ
(a)
ÙèÜæ, ÙæÚ´U»è, ãÚUæ
(b)
ÂèÜæ, ÙèÜæ, ãÚUæ
(c)
ÜæÜ, ÙèÜæ, ãÚUæ
(d)
ÜæÜ, ãÚUæ, ÙèÜæ
1
ç·¤âè ÀUæ˜æ Ùð °·¤ ÂÚU¹ÙÜè ×ð,´ çÁâ×ð´ çÁ´·¤ ·¤è ·¤ç‡æ·¤æ°´ Íè, ÌÙé HCl ç×ÜæÙð ÂÚU çِÙçÜç¹Ì Âýÿð æ‡æ ç·¤° Ñ
(I)
çÁ´·¤ ·¤æ ÂëcÆU ·¤æÜæ ãæð ÁæÌæ ãñÐ
(II)
°·¤ »ñâ çÙ·¤ÜÌè ãñ Áæð Âæò ŠßçÙ âð ÁÜÌè ãñÐ
(III)
çßÜØÙ Ú´U»ãèÙ ÚUãÌæ ãñÐ
1
âãè Âýðÿæ‡æ ãñ´ Ñ
29.
(a)
(I)
¥æñÚU (II)
(b)
(II)
(c)
(I)
¥æñÚU (III)
(d)
(I), (II)
¥æñÚU (III)
¿æÚU ÀUæ˜ææð´ Ùð ÌÙé ãæ§ÇþUæð€ÜæðçÚU·¤ ¥Ü ÌÍæ âæðçÇUØ× ãæ§ÇþUæò€âæ§ÇU çßÜØÙ ·¤è çÁ´·¤ ÏæÌé ÌÍæ ÆUæðâ âæðçÇUØ×
·¤æÕæðüÙðÅU âð ÂëÍ·¤-ÂëÍ·¤ ¥çÖç·ý¤Øæ ·¤ÚUæØè´Ð ©‹ãæð´Ùð âæÚU‡æè ×ð´ â´ÖæçßÌ ¥çÖç·ý¤Øæ ·¤æð (3) ÌÍæ ·¤æð§ü
¥çÖç·ý¤Øæ Ùãè´ ·¤æð (5) mæÚUæ çܹæÐ Âýðÿæ‡ææð´ ·ð¤ ç·¤â â×é“æØ ×ð´ âÖè Âýðÿæ‡æ âãè ãñ´
ĹËuȺ
(a)
(b)
(c)
(d)
30.
¥æñÚU (III)
HCl + Zn HCl + Na 2CO 3 NaOH + Zn NaOH + Na 2CO 3
¥æÚðU¹ I ÌÍæ II ×ð´ Îàææü° »° ÂçÚUÂÍæð´ ×ð´ ßæðËÅU×èÅUÚUæð´ ·ð¤ ÂæÆ÷UØæ´·¤ ãæð´»ð Ñ
1
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ÂçÚUÂÍ I ×ð´ 2V ÌÍæ ÂçÚUÂÍ II ×ð´ OV
(b)
ÎæðÙæð´ ÂçÚUÂÍæð´ ×ð´ OV
(c)
ÎæðÙæð´ ÂçÚUÂÍæð´ ×ð´ 2V
(d)
ÂçÚUÂÍ I ×ð´ OV ÌÍæ ÂçÚUÂÍ
1080607 - A1
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31.
çΰ »° ÕñÅUÚUè çÙc·¤æÚU·¤ (§çÜç×ÙðÅUÚU) ÂÚU ÏÙ ÅUç×üÙÜ ÌÍæ «¤‡æ ÅUç×üÙÜ ·ð¤ ç¿q ç×ÅU »° ãñ´Ð Ùè¿ð Îè »Øè
çÁâ ÃØßSÍæ mæÚUæ âãè ç¿qæð´ ·¤è Âã¿æÙ âßæðüžæ× É´U» âð ãæð â·ð¤»è ßã ÎàææüØè »Øè ãñ Ñ
(a)
32.
翘æ A ×ð´
(b)
翘æ A ß B ×ð´
(c)
翘æ B ß C ×ð´
(d)
翘æ C ß A ×ð´
Îæð ÀUæ˜æ Ùè¿ð Îàææü° »° Îæð ÂçÚUÂÍæð´ ·¤æ ©ÂØæð» ·¤ÚU ÚUãð ãñ´Ð ßð ¥ÂÙð ÂýØæð» mæÚUæ ™ææÌ ·¤ÚU ÚUãð ãñ çΰ »° Îæð
ÂýçÌÚUæðÏ·¤æð´ ·¤æ ÌéËØ ÂýçÌÚUæðÏ ÁÕç·¤ ©Ù·ð¤ ÂýçÌÚUæðÏ·¤æð´ ·ð¤ â´ØæðÁÙ ãñ´ ·ý¤×àæÑ
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Ÿæð‡æè â´ØæðÁÙ ÌÍæ Âæàßü â´ØæðÁÙ
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Âæàßü â´ØæðÁÙ ÌÍæ Ÿæð‡æè â´ØæðÁÙ
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ÎæðÙæð´ ×𴠟æð‡æè â´ØæðÁÙ
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ÎæðÙæð´ ×ð´ Âæàßü â´ØæðÁÙ
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33.
ç·¤âè ÀUæ˜æ ·¤æð 4 âðÜæð´, çÁÙ×ð´ ÂýˆØð·¤ 1.5V ·¤æ ãñ, ·¤æð â´ØæðçÁÌ ·¤ÚU·ð¤
6V ·¤è
ÕñÅUÚUè ÕÙæÙè ãñÐ
1
âðÜæð´ ·¤æð â´ØæðçÁÌ ·¤ÚUÙð ·¤æ âãè É´U» çÁâ ç¿U˜æ ×ð´ ÎàææüØæ »Øæ ãñ, ßã ãñ Ñ
(a)
34.
(b)
B
(c)
C
(d)
D
翘æ I ÌÍæ II ×ð´ Îàææü° »° ÂçÚUÂÍæð´ ×ð´ °ð×èÅUÚU ·ð¤ ÂæÆ÷UØæ´·¤ ãæ´ð»ð Ñ
(a)
(c)
35.
A
ÂçÚUÂÍ I ×ð´ IA ÌÍæ ÂçÚUÂÍ II ×ð´ OA
ÎæðÙæð´ ÂçÚUÂÍæð´ ×ð´ IA
(b)
(d)
1
ÎæðÙæð´ ÂçÚUÂÍæð´ ×ð´ OA
ÂçÚUÂÍ I ×ð´ OA ÌÍæ ÂçÚUÂÌ ×ð´ IA
Ùè¿ð çΰ »° ç¿˜æ ·ð¤ çÜ° âãè Ùæ×æ´·¤Ù ¿éçÙ° Ñ
(a)
(1)
(b)
(1)
(c)
(1)
(d)
(1)
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(2)
(2)
(2)
1
mæÚU ·¤æðçàæ·¤æ
Ú´UÏý
Ú´UÏý
¥çÏ¿×ü ·¤æðçàæ·¤æ
17
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(3)
(3)
(3)
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mæÚU ·¤æðçàæ·¤æ
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mæÚU ·¤æðçàæ·¤æ
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36.
Øãæ´ ¥æ´çàæ·¤ M¤Â âð ·¤æÜð ·¤æ»$Á âð ÉU·¤è ©â žæè ·¤æ 翘æ ÎàææüØæ »Øæ ãñ çÁâ·¤æ ©ÂØæð» ÒÒØã ÎàææüÙæ ç·¤
Âý·¤æàæ â´àÜðá‡æ ·ð¤ çÜ° Âý·¤æàæ ¥æßàØ·¤ ãñÓÓ ÂýØæð» ×ð´ ç·¤Øæ ÁæÙæ ãñÐ ÂýØæ𻠷𤠥‹Ì ×ð´, žæè ·¤æð ¥æØæðÇUèÙ
çßÜØÙ ×ð´ ÇéUÕæðÙð ÂÚU žæè ·ð¤ Ùæ×æ´ç·¤Ì Öæ»æð´ I, II ÌÍæ III ×ð´ âð ·¤æñÙ âð Öæ» ÙèÜð ·¤æÜð ãæð Áæ°´»ð?
(a)
37.
38.
·ð¤ßÜ
I
(b)
·ð¤ßÜ
II
(c)
I ÌÍæ III
(d)
II ÌÍæ III
çàæÿæ·¤ Ùð ç·¤âè ÀUæ˜æ ·¤æð Øã çÙÎðüàæ çÎØæ ç·¤ ßã Âý·¤æàæ â´àÜðá‡æ ·¤æ ÂýØæð» ·¤ÚUÙð âð Âêßü »×Üð ×ð´ Ü»ð ÂæñÏð ·¤æð
24 ƒæ‹Åð Ì·¤ ¥´ÏðÚðU ·¤×ÚðU ×ð´ ÚU¹ðÐ ÂæñÏð ·¤æð ¥´ÏðÚðU ·¤×ÚðU ×ð´ ÚU¹Ùð ·¤æ ©gðàØ ãñ Ñ
(a)
¥æò€âèÁÙ ·ð¤ ¥‹Ì»ýüã‡æ ×ð´ ßëçh ·¤ÚUÙæ
(b)
ÂçžæØæ𴠷𤠀ÜæðÚUæðŒÜæSÅU ·¤æð âçR¤Ø ·¤ÚUÙæ
(c)
ÂçžæØæð´ ·¤æð SÅUæ¿ü ÚUçãÌ ·¤ÚUÙæ
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ÂçžæØæð´ ×ð´ °´Áæ§×æð´ ·¤æð çß·ë¤Ì ·¤ÚUÙæ
翘æ ×ð´ Îàææü° »° ÂýØæð» ×ð´ ×éǸè ÙÜè ×ð´ ÁÜ ·¤æ ÌÜ ª¤ÂÚU ©ÆUæ ÂæØæ »ØæÐ §â·¤æ ·¤æÚU‡æ Øã ãñ ç·¤ Ñ
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ÕèÁæð´ Ùð ÜæS·¤ ·¤è ¥æò€âèÁÙ ·¤æ ©ÂØæð» ·¤ÚU çÜØæ ãñÐ
(b)
¥´·é¤çÚUÌ ÕèÁæð´ Ùð ·¤æÕüÙ ÇU槥æò€âæ§ÇU çÙ·¤æÜè ãñÐ
(c)
¥´·é¤çÚUÌ ÕèÁ Õè·¤ÚU âð ÁÜ ·¤æð ¥æ·¤çáüÌ ·¤ÚUÌð ãñ´Ð
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ÕèÁ ¥æò€âèÁÙ ·¤æ ©ÂØæð» ·¤ÚU·ð¤ ·¤æÕüÙ ÇU槥æò€âæ§ÇU ×é€Ì ·¤ÚUÌð ãñ´ çÁâð ÂæðÅUæòçàæØ× ãæ§ÇþUæò€âæ§ÇU
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39.
ç·¤âè çßlæÍèü Ùð °·¤ žæè ÂÚU SÅUæ¿ü ÂÚUèÿæ‡æ ç·¤Øæ çÁâ·ð¤ ·é¤ÀU ¿ÚU‡æ Ùè¿ð Îàææü° »° ãñ´Ð
(ii)
(i)
žæè ©ÕÜÌð ÁÜ ×ð´
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žæè ¥ØæðǸèÙ çßÜØÙ ×ð´
žæè °ðË·¤æðãæòÜ ×ð´
1
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žæè ·¤ÿæ Ìæ ÂÚU ÁÜ ×ð´
§Ù ¿ÚU‡ææð´ ·¤æ âãè ·ý¤× ãæðÙæ ¿æçã° Ñ
40.
41.
(a)
(iv), (iii), (ii),
(i)
(b)
(i),
(ii),
(c)
(ii),
(iii), (iv), (i)
(d)
(i),
(iii), (iv), (ii)
(iii), (iv)
ÁÕ Üæðãð ·¤è ·¤èÜ ·¤æð ·¤æòÂÚU âËÈð¤ÅU çßÜØÙ ×ð´ ÇéUÕæðÌð ãñ Ìæð Øã Âðýÿæ‡æ ÙæðÅU ç·¤Øæ ÁæÌæ ãñ ç·¤ Ñ
(a)
çßÜØÙ ãË·¤æ ãÚUæ ãæð ÁæÌæ ãñÐ
(b)
·¤èÜ ÂÚU ÖêÚUæ çÙÿæð ÕÙ ÁæÌæ ãñÐ
(c)
(a)
(d)
©ÂÚUæð€Ì ×ð´ âð ·é¤ÀU Ùãè´ ãæðÌæÐ
1
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Ú´UÏýæð ·¤æ Âýðÿæ‡æ ·¤ÚUÙð ·ð¤ çÜ° žæè ·¤è çÛæËÜè ·¤æ ¥æÚUæð‡æ ÌñØæÚU ·¤ÚUÙð ×ð´ ©ÂØæð» ãæðÙð ßæÜæ ¥çÖÚ´UÁ·¤ ãñ Ñ
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âñÈðý¤çÙÙ
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·¤æòÅUÙ ŽËØê
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°ðâèÅUæð ·¤æ×æü§Ù
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1080607 - A1
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P.T.O.
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