KVPY Stream-SA (Class 11) Chemistry: Questions 27 - 32 of 133

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Question number: 27

» Hydrogen » Preparation, Properties and Uses of Hydrogen

Appeared in Year: 2015

MCQ▾

Question

Among Mg,Cu,Fe,Zn the metal that does not produce hydrogen gas in reaction with hydrochloric acid is

Choices

Choice (4) Response
a.

Mg

b.

Zn

c.

Cu

d.

Fe

Question number: 28

» P-Block Elements Group 13 to 18 » Group 17 » Interhalogen Compounds

Appeared in Year: 2009

MCQ▾

Question

The element X which forms a stable product of the type XCl4 is-

Choices

Choice (4) Response
a.

Ca

b.

Na

c.

Si

d.

Al

Question number: 29

» Hydrocarbons » Aromatic Hydrocarbons » Benzene - Structure and Aromaticity

Appeared in Year: 2013

MCQ▾

Question

The equilibrium constant, KC for 3C2H2C6H6(g)

Is 4L2mol2 . If the equilibrium concentration of benzene is 0.5molL1 , that of acetylene in molL1 must be?

Choices

Choice (4) Response
a.

0.025

b.

0.5

c.

0.25

d.

0.05

Question number: 30

» Day to Day Chemistry » Cleansing Agents » Soaps and Detergents

Appeared in Year: 2009

MCQ▾

Question

Saponification is

Choices

Choice (4) Response
a.

Hydrolysis of an amide

b.

Hydrolysis of an acid chloride

c.

Hydrolysis of an ester

d.

Hydrolysis of an ether

Question number: 31

» P-Block Elements Group 13 to 18 » Group 15 » Nitrogen

Appeared in Year: 2014

MCQ▾

Question

Ammonia is NOT produced in the reaction of

Choices

Choice (4) Response
a.

NH4ClwithKOH

b.

NH4ClwithNaNO2

c.

NH4ClwithCa(OH)2

d.

AINwithwater

Question number: 32

» Classification of Elements & Periodicity » Ionization Enthalpy

Appeared in Year: 2014

MCQ▾

Question

The first ionization enthalpies for three elements are 1314, 1680 and 2080 kJmol1 , respectively. The correct sequence of the elements is

Choices

Choice (4) Response
a.

F, Ne and O

b.

O, F, and Ne

c.

Ne, F and O

d.

F, O and Ne

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