EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2018>Q 2

EASY

KEAM

IMPORTANT

Earn 100

$A l_{2} {(S O_{4})}_{3}$ is used for a variety of purposes but not

50% studentsanswered this correctly

Important Questions on The p-block Elements

EASY

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2018>Q 3

More than four bonds are made by how many elements in the carbon family?

MEDIUM

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2019>Q 4

Which hydride amongst the following has the least boiling point ?

MEDIUM

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2020>Q 5

The oxyacid of phosphorus that contains one

P - OH,

two

P - H

and one

P = O

bonds is

EASY

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2019>Q 6

The compound(s) that does(do) not exist is (are)

EASY

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2019>Q 7

{PCl}_{3}

is stored in a well stoppered bottle since

MEDIUM

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2018>Q 8

Consider the following statements concerning

N_{2} H_{4} :

(i) It is an exothermic compound.

(ii) It burns in air with the evolution of heat.

(iii) It has kinetic stability.

(iv) It reduces

F e^{3 +}

to

F e^{2 +}

in acidic medium.

Which of the following combinations is correct?

HARD

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2018>Q 9

Consider the following compounds:

1 . {(N H_{4})}_{2} C r_{2} O_{7}

2 . N H_{4} N O_{2}

3 . N H_{4} V O_{3}

4 . N H_{4} N O_{3}

Which compound(s) yield(s) nitrogen gas upon heating?

MEDIUM

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - The p-block Elements>KEAM 2018>Q 10

When

S O_{2}

gas is passed through aqueous

N a_{2} C O_{3}

, the product(s) formed is(are):