JIPMER Chemistry Mock Test - 5


60 Questions MCQ Test JIPMER 2020: Subject wise and Full Length Mock Tests | JIPMER Chemistry Mock Test - 5


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QUESTION: 1

Which one of the following substances will decolourise alkaline KMnO4 solution?

Solution: The right answer is (B) because any compound having unsaturated carbon decolourise KMnO4
QUESTION: 2

Carbon atom holding in aryl halides is

Solution: Aryl halides are the compounds that contain halogen atom directly bonded to benzene ring. they have general formula Ar-x. in aryl group all carbons have sp2 hybridisation. so the answer is A.
QUESTION: 3

Which is most soluble in water?

Solution:
QUESTION: 4

Acetylene gives

Solution:
QUESTION: 5

Acetylene reacts with ammonical silver nitrate to form

Solution:
QUESTION: 6

The energy of second Bohr orbit of hydrogen atom is -328 kJ mol-1, hence energy of fourth Bohr orbit would be

Solution:
QUESTION: 7

The H-spectrum shows

Solution:
QUESTION: 8

The most probable radius (in pm) for finding the electron in He⁺ is

Solution:
QUESTION: 9

The alkyl halide is converted into ethyl alcohol by

Solution:
QUESTION: 10

Pi bond is formed by the overlapping of

Solution:
QUESTION: 11

The second order rate constant is usually expressed as

Solution:
QUESTION: 12

Which of the following is not tetrahedral?

Solution:
QUESTION: 13

A chemical reaction will be spontaneous if it is accompained by a decrease of

Solution:
QUESTION: 14

Which of the following is true for an isochoric processes

Solution:
QUESTION: 15

The rate of forward reaction is two times that of the reverse reaction at a given temperature and identical concentration, K equilibrium is

Solution:
QUESTION: 16

The ΔH value for the reaction H2 + Cl2  → 2 HCl is − 44.12 K.cal. If E1 is the activation energy of the reactants and E2 is the activation energy of the products, then for the above reaction

Solution:
QUESTION: 17

Which of the following is used as an antiseptic?

Solution:
QUESTION: 18

Name of the compound as per IUPAC system is

Solution:
QUESTION: 19

The number of electrons required to deposit 1 g equivalent aluminium (At. wt. = 27) from a solution of aluminium chloride will be

Solution:
QUESTION: 20

Let electronegativity, ionisation energy and electron affinity be represented as EN, IP and EA respectively. Which one of the following equation is correct according to Mulliken?

Solution:

Mulliken-Jaffe Electronegativity:
Electronegativity (EN) can be regarded as the average of the ionisation energy (IE) and the electron affinity (EA) of an atom.

EN = (IP + EA)/2

QUESTION: 21

The number of isomers exhibited by [Cr(NH₃)₃Cl₃] is

Solution:
QUESTION: 22

ChemicalA is used for water softening to remove temporary hardness. A reacts with Na₂CO₃ to generate caustic soda. When CO₂ is bubbled throughA, it turns cloudy. What is the chemical formula of A?

Solution:
QUESTION: 23

The value of gas constant per degree per mole is approximately

Solution:
QUESTION: 24

Wt. of 112 ml oxygen at NTP on liquification would be

Solution:
22400 ml is the volume of  O2 at NTP = 32 g of O2
1 ml is the Volume of  O2= 32 / 22400
112 ml is the volume of O2 at NTP = 32 / 22400 * 112  = 0.16g of O2
QUESTION: 25

Sodium conducts electricity because

Solution:
QUESTION: 26

Which one of the following reacts with conc. H₂SO₄?

Solution:
QUESTION: 27

Aluminium is extracted by the electrolysis of

Solution:
QUESTION: 28

Gun metal is an alloy of

Solution:
QUESTION: 29

The acid which forms two series of salts is

Solution:
QUESTION: 30

When I₂ is dissolved in CCl4 the colour that results is

Solution:
QUESTION: 31

Which of the following oxides reacts with HCl and NaOH?

Solution:
QUESTION: 32

The nitride salt of Ca when treated with H₂O gives

Solution:
QUESTION: 33

Which of the following has highest pH?

Solution:
QUESTION: 34

A metal which does not liberate H₂ (g) from acids

Solution:
QUESTION: 35

Sodium carbonate cannot be used in place of ammonium carbonate for the identification of the fifth group radicals . This is because the

Solution:
QUESTION: 36

If pH values of P, Q, R and S are 9.5, 2.5, 3.5 and 5.5 respectively, then the strongest acid is

Solution:
QUESTION: 37

Which of the following is the strongest acid ?

Solution:
QUESTION: 38

The property by virtue of which, a compound can turn the plane polarized light is known as

Solution:
QUESTION: 39

Unstable substances exhibit higher radioactivity due to

Solution:
QUESTION: 40

A cyclotron can not accelerate

Solution:
QUESTION: 41

Carbylamines are formed when chloroform and alcoholic KOH are heated with

Solution:
QUESTION: 42

Organic acid without a carboxylic acid group is

Solution:
QUESTION: 43

The most appropriate reagent to convrert
RCOOEt→RCH₂OH is

Solution:
QUESTION: 44

Which of the following reagent will convert Propanoic acid to Propan-1-ol?

Solution:
QUESTION: 45

Which does not contain conjugate system?

Solution:

In dienes, when the double bonds connected to each other by a single bond, this arrangement is known as conjugated.

QUESTION: 46

Conc. HNO3  forms NO2+  in presence of :

Solution:
QUESTION: 47

The co-ordination number of Fe(II) in oxyhaemoglobin

Solution:
QUESTION: 48

Phenol on reduction with H₂ in presence of nickel catalyst gives

Solution:
QUESTION: 49

Which of the following is a constituent of nylon?

Solution:
QUESTION: 50

In Kjeldahl's method ,nitrogen present is estimated as

Solution:
QUESTION: 51

In the chemical reaction Ag₂O + H₂O + 2e- → 2Ag + 2OH-

Solution:
QUESTION: 52

In a reaction between zinc and iodine, zinc iodide is formed, what is being oxidised?

Solution:
QUESTION: 53

Piezoelectric crystals are used in

Solution:
QUESTION: 54

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

Solution:
QUESTION: 55

Equal volumes of 0.1 M AgNO₃ and 0.2 M NaCl are mixed. The concentration of NO₃- ions in the mixture will be

Solution:
QUESTION: 56

Which of the following can exhibit optical isomerism?

Solution:
QUESTION: 57

The ability of an ion to bring about coagulation of a given colloid depends on

Solution:
QUESTION: 58

The number of moles of oxygen in one litre of air containing 21% oxygen by volume, in standard conditions, is

Solution:

Amount of O2 in 1 litre air = 21 % = 0.21 L .

∵ 22.4 L . of O2 = 1 mol
∴ 0.21 L of O2 = 1/22.4 x 0.21 mol = 0.0093 mol

QUESTION: 59

Which has highest radii ?

Solution:
QUESTION: 60

Actinides

Solution:

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