JIPMER Chemistry Mock Test - 5

Question 1

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

Accepted Answer

C3H4

Answer

C3H8

Answer

CH3CHO

Answer

CCl4

Question 2

Carbon atom holding in aryl halides is

Accepted Answer

sp² - hybridised

Answer

sp³ - hybridised

Answer

sp - hybridised

Answer

sp³d-hybridised

Question 3

Which is most soluble in water?

Accepted Answer

AgF

Answer

AgCl

Answer

AgBr

Answer

AgI

Question 4

Acetylene gives

Accepted Answer

White ppt. with ammonical AgNO₃ and red ppt. with ammonical Cu₂Cl₂

Answer

White ppt. with ammonical AgNO₃ and red ppt. with ammonical Cu(NO₃)₂

Answer

White ppt. with both

Answer

Red ppt. with both

Question 5

Acetylene reacts with ammonical silver nitrate to form

Accepted Answer

Silver acetylide

Answer

Silver mirror

Answer

Metal silver

Answer

Silver acetate

Question 6

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

Accepted Answer

-82 kJ mol^-1

Answer

-41 kJ mol^-1

Answer

-164 kJ mol^-1

Answer

-1312 kJ mol^-1

Question 7

The H-spectrum shows

Accepted Answer

Presence of quantized energy levels

Answer

Heisenberg's uncertainty principle

Answer

Diffraction

Answer

Polarisation

Question 8

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

Accepted Answer

26.5

Answer

0.0

Answer

52.9

Answer

105.8

Question 9

The alkyl halide is converted into ethyl alcohol by

Accepted Answer

substitution reaction

Answer

addition reaction

Answer

elimination reaction

Answer

dehydrohalogenation reaction

Question 10

Pi bond is formed by the overlapping of

Accepted Answer

p-p orbitals along perpendicular to their axis

Answer

p-p orbitals along their axis

Answer

s-p orbitals along their axis

Answer

s-s orbitals

Question 11

The second order rate constant is usually expressed as

Accepted Answer

litre mol^-1sec^-1

Answer

litre mol sec^-1

Answer

litre^-1mol^-1sec^-1

Answer

litre^-1mol sec^-1

Question 12

Which of the following is true for an isochoric processes

Accepted Answer

&#8710;V=0

Answer

&#8710;W=0

Answer

&#8710;E=0

Answer

&#8710;V=&infin;

Question 13

Which of the following is not tetrahedral?

Accepted Answer

CO32-

Answer

BF4&minus;

Answer

NH4+

Answer

SO42-

Question 14

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

Accepted Answer

free energy of the system

Answer

entropy of the system

Answer

enthalpy of the system

Answer

internal energy of the system

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

Accepted Answer

2.0

Answer

0.5

Answer

1.5

Answer

2.5

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

Accepted Answer

E₁ < E₂

Answer

E₁ > E₂

Answer

E₁ = E₂

Answer

ΔH is not related to E₁ to E₂

Question 17

Which of the following is used as an antiseptic?

Accepted Answer

Phenol

Answer

Benzaldehyde

Answer

Benzalamine

Answer

Malic anhydride

Question 18

Name of the compound as per IUPAC system is

Accepted Answer

3,3-Dimethyl-1-butene .

Answer

3,3,3-Trimethyl-1-propene

Answer

1,1,1-Trimethyl-3-propene

Answer

1,1-Dimethyl-3-butene

Question 19

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?

Accepted Answer

EN = (IP + EA)/2

Answer

EN = IP x EA

Answer

EN = IP/EA

Answer

EN = IP − EA

Question 20

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

Accepted Answer

2

Answer

3

Answer

4

Answer

5

Question 21

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

Accepted Answer

2

Answer

1

Answer

3

Answer

4

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?

Accepted Answer

Ca(OH)&#8322;

Answer

CaCO&#8323;

Answer

CaO

Answer

Ca(OH₃)₂

Question 23

The value of gas constant per degree per mole is approximately

Accepted Answer

2 cal

Answer

1 cal

Answer

3 cal

Answer

4 cal

Question 24

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

Accepted Answer

0.16 gm

Answer

0.32 gm

Answer

0.64 gm

Answer

0.96 gm

Question 25

Sodium conducts electricity because

Accepted Answer

It has mobile electrons

Answer

It is a soft alkali metal

Answer

It has only one electron in the outermost orbit

Answer

It gives hydrogen with water

Question 26

Aluminium is extracted by the electrolysis of

Accepted Answer

Alumina mixed with molten cryolite

Answer

Bauxite

Answer

Alumina

Answer

Molten cryolite

Question 27

Which one of the following reacts with conc. H₂SO₄?

Accepted Answer

Ag

Answer

Au

Answer

Pt

Answer

Pb

Question 28

Gun metal is an alloy of

Accepted Answer

Cu,Sn,Zn,Pb

Answer

Mg,Sn,Zn

Answer

Cu,Ni,Zn

Answer

Cu,Sb,Zn,Pb

Question 29

The acid which forms two series of salts is

Accepted Answer

H&#8323;PO&#8323;

Answer

H&#8323;PO&#8324;

Answer

H&#8323;BO&#8323;

Answer

H&#8323;PO&#8322;

Question 30

When I₂ is dissolved in CCl₄ the colour that results is

Accepted Answer

Violet

Answer

Brown

Answer

Colourless

Answer

Bluish green

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Full Mock Test & Solutions: JIPMER Chemistry Mock Test - 5 (60 Questions)

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