All In One ISC Chemistry Class 12>Chapter 7 - p-Block Elements>Chapter Practice>Q 50

HARD

12th ICSE

IMPORTANT

Earn 100

Why is the bond angle in ${PH}_{3}$ is lesser than that in ${NH}_{3}$ molecule?

Important Questions on p-Block Elements

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 7 - p-Block Elements>Chapter Practice>Q 50

{NO}_{2}

dimerises to form

N_{2} O_{4}

. Why?

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 7 - p-Block Elements>Chapter Practice>Q 51

Complete the following reaction:

${Na}_{2} {SO}_{3} + 2 HCl \overset{}{\to}$ .

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 7 - p-Block Elements>Chapter Practice>Q 52

How is chlorine produced by electrolytic method?

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 7 - p-Block Elements>Chapter Practice>Q 52

How can we get chlorides of noble metals?

HARD

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 7 - p-Block Elements>Chapter Practice>Q 53

Draw the molecular structure of

{XeF}_{2}, {XeF}_{4}, {XeO}_{2} F_{2}

, indicating the location of lone pairs of electrons.

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 7 - p-Block Elements>Chapter Practice>Q 54

Give reason: Among noble gases, only xenon is known to form real compounds.

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 7 - p-Block Elements>Chapter Practice>Q 54

Give reason:

Bismuth is a strong oxidising agent in the pentavalent state.