Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 2

MEDIUM

JEE Advanced

IMPORTANT

Earn 100

${NO}_{2}$ gas is paramagnetic at room temperature. When a sample of the gas is cooled below $0 ° C$ , its molecular weight increases, and it loses paramagnetism. When it is reheated, the behaviour is reversed. Using the electron dot structures, write an equation that accounts for this observation.

Important Questions on Chemical Bonding and Molecular Structure

HARD

JEE Advanced

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 3

The lattice energy of an ionic compound can be calculated by using the formula:

U = - A \times \frac{N_{0} z^{+} z^{-} e^{2}}{r}

When

r = 0

(i.e., two ions are touching each other), the value of

U

must be infinity? Comment upon the result.

HARD

JEE Advanced

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 4

Estimate the lattice energy of

{CaCO}_{3}

, if

r_{{Ca}^{+}} = 114 pm

and

r_{{CO}_{3}^{2 -}} = 185 pm

.

EASY

JEE Advanced

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 5

"Solubility of alkali metal hydroxide increases down the group."

Select only the correct explanation for the given statement.

EASY

JEE Advanced

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 6

Which pair is not the correct order of lattice energy?

EASY

JEE Advanced

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 7

Select the correct statement.

HARD

JEE Advanced

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 8

Coordinate covalent bond is absent in ________.

MEDIUM

JEE Advanced

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 9

In which of the dimerisation process, the achievement of the octet is not the driving force.

HARD

JEE Advanced

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry Part - 1 JEE Main & Advanced>Chapter 2 - Chemical Bonding and Molecular Structure>DPP>Q 10

Which of the following species are hypervalent?

$1$ . ${ClO}_{4}^{-}$

$2$ . ${BF}_{3}$

$3$ . ${SO}_{4}^{2 -}$

$4$ . ${CO}_{3}^{2 -}$