AIIMS Chemistry Mock Test - 4


60 Questions MCQ Test AIIMS Mock Tests & Previous Year Papers | AIIMS Chemistry Mock Test - 4


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This mock test of AIIMS Chemistry Mock Test - 4 for NEET helps you for every NEET entrance exam. This contains 60 Multiple Choice Questions for NEET AIIMS Chemistry Mock Test - 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this AIIMS Chemistry Mock Test - 4 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this AIIMS Chemistry Mock Test - 4 exercise for a better result in the exam. You can find other AIIMS Chemistry Mock Test - 4 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

Ethanol when reacted with PCl₅ gives A, POCl₃ and HCl. A reacts with silver nitrate to form B (major product) and AgCl. A and B respectively are

Solution:
QUESTION: 2

How many atoms are contained in one mole of sucrose (C12H22O11)?

Solution:

C12H22O11 contains a total of 45 atoms ≅ 45 x 6.02 x 1023 atoms/mole

QUESTION: 3

which of the following shows electrical conduction?

Solution:
QUESTION: 4

Toluene on oxidation with chromyl chloride produces

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QUESTION: 5

12g of Mg (at.mass 24) will react completely with acid to give

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QUESTION: 6

Which of the following possesses the highest melting point?

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QUESTION: 7

The most reactive compound for electrophilic nitration is

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QUESTION: 8

In graphite, the electrons are

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QUESTION: 9

Which of the following compounds has the highest boiling point?

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QUESTION: 10

The rate of a reaction can be increased in general by all the factors except by

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QUESTION: 11

The rate at which a substance reacts depends on its

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QUESTION: 12

The intensive property among these quantities is

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QUESTION: 13

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): The ligand cyanide and isocyanide are called ambidentate.
Reason(R): These ligands gives rise to linkage isomerism.

Solution:
QUESTION: 14

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): The m.p./b.p. of noble gas are quite high.
Reason(R): The interparticle forces among noble gases in their liquid state are van der Waal's forces.

Solution:
QUESTION: 15

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Sodium ions are discharged in preference to H⁺ ions at mercury cathode.
Reason(R): The nature of cathode can affect the order of discharge of cation.

Solution:
QUESTION: 16

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Aqueous solution of Na₂CO₃ is alkaline in nature.
Reason(R): When dissolved in water, Na₂CO₃ undergoes anionic hydrolysis to form strong base and weak acid.

Solution:
QUESTION: 17

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Oils contain higher proportion of glycerides of saturated fatty acids.
Reason(R): Oils contain a higher percentage of olein.

Solution:
QUESTION: 18

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Pure acetic acid is converted into ice like solid called glacial acetic acid.
Reason(R): Acetic acid is stronger than HCOOH.

Solution:
QUESTION: 19

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Alcohols are dehydrated to hydrocarbons in the presence of acidic zeolites.
Reason(R): Zeolites are porous catalysts.

Solution:
QUESTION: 20

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A):MgO is used for lining of steel making furnace.
Reason(R):MgO acts as acidic flux and facilitates the removal of acidic impurities of Si, P and S from steel through slag formation.

Solution:
QUESTION: 21

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Emission spectrum can be continuous or discontinuous.
Reason (R): If source emits white light, it is continuous and if source emits some coloured radiation, it is discontinuous.

Solution:
QUESTION: 22

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): In CaCl crystal, the co-ordination number of Cs+ ion is 8.
Reason(R): Ci-ion in CsCl adopt bcc type of packing.

Solution:
QUESTION: 23

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Cyclic ketones like cyclohexanone exhibit keto-enol tautomerism .
Reason(R): In cyclohexanone , one form contains the keto group (C = O) while other contains enolic group (- C = C - OH).

Solution:
QUESTION: 24

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Chloroform and benezene are miscible liquids and they are separated by fractional distillation.
Reason(R): Boiling point of benzene is less than that of chloroform .

Solution:
QUESTION: 25

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Benzene on heating with conc. H2SO4 forms benzene sulphonic acid which when heated with superheated steam under pressure forms benzene again.
Reason(R): Sulphonation of benzene is a reversible process.

Solution:
QUESTION: 26

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): KMnO4 and K2Cr2O7 are intensely coloured compounds.
Reason(R): Transition metal compounds having electrons in d-orbitals are coloured due to d-d transition.

Solution:
QUESTION: 27

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Hydroxyketones are not directly used in grrignard reaction.
Reason(R): Grignard reagent reacts with hydroxyl group.

Solution:
QUESTION: 28

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Hydrogen has only one elctron in its orbit but it produces several spectral lines.
Reason(R): There are many excited energy levels available.

Solution:
QUESTION: 29

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Alizarin is a neutral dye also used as mordant dye.
Reason(R): It imparts same colour when aluminium and chrominum salts are used as mordants.

Solution:
QUESTION: 30

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Anisole undergoes electrophilic substitution at ortho and para positions.
Reason(R): Anisole is less reactive than phenol towards electrophilic substitution reactions.

Solution:
QUESTION: 31

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Molarity is a convenient concentration unit.
Reason(R): Number of moles of solution can be calculated with ease No.of moles =

Solution:
QUESTION: 32

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): White colour mixture is an indication of transition metal salts being absent with few exceptions (Fe2+, Mn2+ etc.).
Reason(R): Most of transition metals salts are coloured.

Solution:

White or near white mixtures normally do not contain transition metal cations in them.
Fe2+ is faintly green, Mn2+ is faintly pink and Zn2+ is white

QUESTION: 33

Which of the following halogen is the weakest oxidising agent?

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QUESTION: 34

The standard e.m.f. of a galvanic cell, with standard electrode potentials of zinc equal to -0.76 V and that of copper equal to + 0.34 V, is

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QUESTION: 35

In a flask of volume V litres,0.2 mol of oxygen ,0.4 mol of nitrogen ,0.1 mol of NH₃ and 0.3 mol of Helium are enclosed at 27oC .If the total pressure exerted by these non reacting is one atmosphere. the partial pressure exerted by nitrogen is

Solution:
QUESTION: 36

Sodium metal cannot be stored under

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QUESTION: 37

Molten sodium chloride conducts electricity due to the presence of

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QUESTION: 38

Which of the following alkali metal hydroxides is the strongest base?

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QUESTION: 39

Which one of the following species is not a pseudohalide?

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QUESTION: 40

D₂O is used in

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QUESTION: 41

Sodium sulphate is soluble in water but barium sulphate is insoluble because

Solution:

The solubility of a salt in water depends upon : (i) Lattice energy and (ii) Hydration energy.
In general, If hydration energy > lattice energy, salt dissolves.
If hydration energy < lattice energy, salt does not dissolve.

QUESTION: 42

An example of a salt that will not hydrolyse is

Solution:
QUESTION: 43

In which of the following acid-base titration pH is greater than8 at the equivalence point ?

Solution:
QUESTION: 44

Which of the following will act as Lewis base, nucleophilic reagent as well as ligand in complex compound ?

Solution:
QUESTION: 45

An aqueous solution of ammonium acetate is

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QUESTION: 46

Which of the following statements regarding chemical properties of acetophenone are wrong?
I.It is reduced to methylphenylcarbinol by sodium and ethanol
II. It is oxidised to benzoic acid with acidified KMnO₄
III. It does not undergo electrophilic substitution like nitration at meta position
IV. It does not undergo iodoform reaction with iodine and alkali

Solution:
QUESTION: 47

Which is not observed in nucleophilic addition reaction?

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QUESTION: 48

Which of the following reactant in the presence of AlCl₃ gives acetophenone?

Solution:
QUESTION: 49

Which has least free energy?

Solution:
QUESTION: 50

Which gives more stable product ?

Solution:
QUESTION: 51

CH2 ═ CHCH3

undergoes free radical substitution using NBS. Product formed is :

Solution:
QUESTION: 52

Silicon combines with magnesium in an electric arc furnace between 2000K to 2500 k to produce

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QUESTION: 53

Which type of glass has a property to cut off ultra-violet rays?

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QUESTION: 54

Semiconductors are derived from compounds of

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QUESTION: 55

The number of gram equivalents present in 60 ml of 4 N solution is

Solution:
QUESTION: 56

The volumes of two HCl solutions A(0.5N) and B (0.1N)to be mixed for preparing 2 litre of 0.2N HCl solution

Solution:

From N1V1 = N2V2 we get,
0.5 XV1 + 0.1 X V2 = 0.2 X 2
or
5V1 + V2 = 4 .....(1)
and
V1 + V2 = 2 .....(2)
Soving the two eqns. we get,
4V1 = 2
V1 = 0.5 L and V2 = 1.5 L

QUESTION: 57

1% solution of Ca(NO₃)₂ has freezing point

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QUESTION: 58

The correct name of the following diene is?

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QUESTION: 59

An organic compound containing C and H has 92.3% of carbon. Its empirical formula is

Solution:
QUESTION: 60

Gun metal is an alloy of-----

Solution:

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