JIPMER Chemistry Mock Test - 7


60 Questions MCQ Test JIPMER 2020: Subject wise and Full Length Mock Tests | JIPMER Chemistry Mock Test - 7


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QUESTION: 1

The number of C - C sigma bonds present in 1-butyne is

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QUESTION: 2

Which one of the following will have the maximum dipole moment

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QUESTION: 3

The homologue of ethyne is

Solution:

C2H2 is Ethyne (homologue of alkyne)
C3H4 is propyne (homologue of alkyne)
C3H8 → propane (homologue of alkane)
C2H6 → Ethane (homologue of alkane)

QUESTION: 4

1-Butyne reacts with cold alkaline KMnO4 to yield

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QUESTION: 5

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

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QUESTION: 6

Which of the following contains an unpaired electron?

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QUESTION: 7

The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at

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QUESTION: 8

The salt used for performing 'bead' test in qualitative inorganic analysis is

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QUESTION: 9

The configuration of X is 1s2 2s2 2p6 3s3p6 3d10 4s2 4p3. Its properties are similar to

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QUESTION: 10

The bromination of benzene in presence of FeBr3 is an example of

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QUESTION: 11

A molecule in which sp2 hybrid orbitals are used by the central atom in forming covalent bonds is

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QUESTION: 12

The energy librated per mole of H+ ion by neutralisation of strong acid and strong base :

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QUESTION: 13

Cu2+ reacts with Fe2+ ions according to the reaction Cu2++ Fe2+  ⇌ Cu+ + Fe3+. AT equilibrium the concentration of Cu2+ is not affected by the addition of

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QUESTION: 14

What will be the order of the reaction if doubling of the concentration of a reactant increases the rate by a factor of 4 and tripling the concentration of the reactant by a factor of 9?

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QUESTION: 15

Which of the following is a basic dye?

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QUESTION: 16

Which of the following is true for an isochoric processes

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QUESTION: 17

The molar heat capacity of water at constant pressure is 75 J-K-1-mol-1. When 1.0 KJ of heat is supplied to 100 g of water, then increase in the temperature of water is

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QUESTION: 18

Name of the compound as per IUPAC system is

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QUESTION: 19

Identify the correct order in which the covalent radius of the following elements increases.
I) Ti
II) Ca
III) Sc

Solution:

Generally, the covalent radius decreases with increase in atomic number as we move from left to right in a period because of the increase in the effective nuclear charge. Thus the order of increasing covalent radius:
I) Ti < III) Sc < II) Ca.

QUESTION: 20

Which of the following organometallic compound?

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QUESTION: 21

On passing 0.1 faraday of electricity through fused sodium chloride ,the amount of chlorine liberated is (At.mass of Cl = 35.45)

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QUESTION: 22

50 ml of gas A diffuses through a membrane in the same time as for the diffusion of 40 ml of a gas B under identical pressure-temperature conditions. If molecular weight of A is 64 that of B would be

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QUESTION: 23

The main function of roasting is

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QUESTION: 24

How many litres of O2 at STP are needed to complete the combustion of 39 g of liquid benzene as per equation given below ? 2C6H6(l)+15O2(g)→12CO2(g)+6H2O(g)

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QUESTION: 25

In organic reactions, sodium in liquid ammonia is used as .........

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QUESTION: 26

Al2O3 formation involves evolution of a large quantity of heat which makes its use in

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QUESTION: 27

The structure and hybridization of Si(CH3)4 is

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QUESTION: 28

Which of the following formula represents the fuming sulphuric acid?

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QUESTION: 29

Which of the following fluoride does not exist?

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QUESTION: 30

Which one of these is acidic?

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QUESTION: 31

In which of the following, oxygen has +2 oxidation number?

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QUESTION: 32

X reacts with aqueous NaOH solution to form Y and H2. Aqueous solution of Y is heated to 323-333 K. On passing CO2 into it, Na2CO3 and Z were formed when Z is heated to 1200oC, Al2O3 is formed. X,Y,Z are respectively

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QUESTION: 33

Which one of the following statements is correct for alkaline earth metals?

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QUESTION: 34

pH of the solution at 25oC is 2. If the pH is to be doubled then the hydronium ion concentration of the solution should be

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QUESTION: 35

When rain is accompanied by thunderstorm, the collected rain water will have a pH value

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QUESTION: 36

When 4 gm of NaOH is dissolved in ten litre of solution the pH is

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QUESTION: 37

The total number of possible isomeric trimethylbenzene number is

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QUESTION: 38

A β-particle is the same as a/an

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QUESTION: 39

The reaction of HCOOH with conc. H2SO4 gives

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QUESTION: 40

-Wooden artifact and freshly cut tree are disintegrated at a rate of 7.6 and 15.2 min-1g-1 of carbon (t₁/t2=5760 years) respectively. The age of the artifact is

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QUESTION: 41

An alkyl halide reacts with metallic sodium in dry ether the reaction is known as

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QUESTION: 42

The order of decreasing ease of reaction with ammonia is

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QUESTION: 43

Conversion of ethyl alcohol into acetaldehyde is an example of

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QUESTION: 44

The order of decreasing ease of reaction with ammonia is

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QUESTION: 45

following step is :
CH3 CH3 + Cl- → CH3CH2 + HCl

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QUESTION: 46

The addition of HBr to alkenes in the presence of peroxides is called :

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QUESTION: 47

Zinc powder + C6H5 ― OH → X. In the above reaction the product X will be

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QUESTION: 48

According to Lewis, the ligands are

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QUESTION: 49

Which of the following is a bio-degradable polymer?

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QUESTION: 50

An organic compound contains C = 40%,H = 13.33% and N = 46.67%.It empirical formula would be

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QUESTION: 51

Select the compound in which chlorine is assigned the oxidation number +7

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QUESTION: 52

The reaction which hydrogen perioxide acts as a reducing agent is

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QUESTION: 53

Pick up the correct statement

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QUESTION: 54

50 ml of 10 N HCl, 25 ml of 12 N HCl and 40 ml of 5 N HNO₃ were mixed together and volume of the mixture was made 1000 ml by adding water. The normality of the resulting solution will be

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QUESTION: 55

6 ml. 0.5 M HCl is mixed in 15 ml of 0.3 M H₂SO₄ and 15 ml of 0.2 M HNO3. The normality of the acid mixture will be

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QUESTION: 56

The number of optically active isomers of the compound C7H16 are:

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QUESTION: 57

The volume in litres of CO2 liberated at STP when 10g of 90% pure lime stone is heated completely is

Solution:

limestone is CaCO3 and we have 9 g in our sample
moles of CaCO3 = 9/100 = .09 moles
the heating reaction is
CaCO3 = CaO + CO2
1 mole of CaCO3 gives 1 mole of CO2
So we have .09 moles of CO2 liberated
at STP 1 mole of gas occupies 22.4 liters so we have
.09 x 22.4 liters = 2.02 liters of CO2

QUESTION: 58

How many layers are adsorbed in chemical adsorption?

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QUESTION: 59

Bordeax used as funficide is a mixture of

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QUESTION: 60

Molecular formula of corrosive submite is

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