Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 31

EASY

KVPY Aptitude Test - Stream SA

IMPORTANT

Earn 100

$2$ moles of nitrogen atoms at $NTP$ occupies a volume of:

50% studentsanswered this correctly

Important Questions on Mole Concept - 1

EASY

KVPY Aptitude Test - Stream SA

IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 32

Under the same conditions, two gases have the same number of molecules. They must

EASY

KVPY Aptitude Test - Stream SA

IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 33

3 g

of a hydrocarbon on combustion in excess of oxygen produces

8.8 g

of

{CO}_{2}

and

5.4 g

of

H_{2} O

. The data illustrates the law of :

EASY

KVPY Aptitude Test - Stream SA

IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 34

The vapour density of a gas

A

is twice that of a gas

B

. If the molecular weight of

B

is

M,

the molecular weight of

A

will be :

EASY

KVPY Aptitude Test - Stream SA

IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 35

The relative density of a gas

A

with respect to another gas

B

is

2

. The vapour density of the gas

B

is

20,

the vapour density of the gas

A

is:

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IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 36

Which is the incorrect statement about

1.7 gm

of

{NH}_{3}

:

MEDIUM

KVPY Aptitude Test - Stream SA

IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 37

$NX$ is produced by the following step of reactions
$M + X_{2} \to {MX}_{2}$

$3 {MX}_{2} + X_{2} \to M_{3} X_{8}$

$M_{3} X_{8} + N_{2} {CO}_{3} \to NX + {CO}_{2} + M_{3} O_{4}$
How much $M$ (metal) is consumed to produce $206 gm$ of $NX$ . $($ Take atomic weight of $M = 56, N = 23, X = 80)$

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KVPY Aptitude Test - Stream SA

IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 38

A + B \to A_{3} B_{2}

(unbalanced)

A_{3} B_{2} + C \to A_{3} B_{2} C_{2}

(unbalanced)
Above two reactions are carried out by taking

3

moles each of

A

and

B

and one mole of

C

. Then which option is correct?

MEDIUM

KVPY Aptitude Test - Stream SA

IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 1 - Mole Concept - 1>EXERCISE>Q 39

If

27 g

of Carbon is mixed with

88 g

of Oxygen and is allowed to burn to produce

{CO}_{2},

then which is incorrect: