Match List - I with List - II. List-I ( Si -Compounds) List-II ( Si -Polymeric/Other Products) A CH 3 4 Si I Chain Silicone B CH 3 Si OH 3 II Dimeric Silicone C CH 3 2 Si OH 2 III Silane D CH 3 3 Si OH IV 2 D - Silicone Choose the correct answer from the options given below

A - III , B - IV , C - I , D - II

A - II , B - III , C - I , D - IV

A - IV , B - I , C - II , D - III

A - II , B - I , C - IV , D - III

The correct order of bond enthalpy ( kJ mol – 1 ) is:

C - C > Si - Si > Ge - Ge > Sn - Sn

Si - Si > C - C > Sn - Sn > Ge - Ge

Si - Si > C - C > Ge - Ge > Sn - Sn

C - C > Si - Si > Sn - Sn > Ge - Ge

Given below are two statements: Statement I: Chlorine can easily combine with oxygen to from oxides: and the product has a tendency to explode. Statement II: Chemical reactivity of an element can be determined by its reaction with oxygen and halogens. In the light of the above statements, choose the correct answer from the options given below

Both the statements I and II are true

Statement I is true but Statement II is false

Statement I is false but Statement II is true

Both the Statements I and II are false

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Amongst He , Ne , Ar and Kr ; 1 g of activated charcoal adsorbs more of Kr . Reason R: The critical volume V c ( cm 3 mol – 1 ) and critical pressure P c (atm) is highest for Krypton but the compressibility factor at critical point Z c is lowest for Krypton. In the light of the above statements, choose the correct answer from the options given below.

Both A and R are true but R is NOT the correct explanation of A

Both A and R are true and R is the correct explanation A

Given below are two statements : Statement I : Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green. Statement II : The green colour observed is due to the formation of copper(I) metaborate In the light of the above statements, choose the most appropriate answer from the options given below:

Both Statement I and Statement II are false

Both Statement I and Statement II are true

Statement I is false but Statement II is true

Statement I is true but Statement II is false

Boric acid in solid, whereas BF 3 is gas at room temperature because of

Strong hydrogen bond in Boric acid

Strong ionic bond in Boric acid

Strong van der Waal's interaction in Boric acid

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 24 June 2022 Shift 1>Q 107

MEDIUM

JEE Main

IMPORTANT

Earn 100

The most stable trihalide of nitrogen is.

79.71% studentsanswered this correctly

Important Questions on The p-Block Elements

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 25 June 2022 Shift 2>Q 108

The number of bridged oxygen atoms present in compound $B$ formed from the following reactions is

$Pb {({NO}_{3})}_{2} \overset{673 K}{⟶} A + PbO + O_{2}$

$A \overset{Dimerise}{⟶} B$

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 25 June 2022 Shift 2>Q 109

${PCl}_{5} + H_{2} O \to A + HCl$

$A + H_{2} O \to B + HCl$

Find number of ionisable hydrogen in $B$

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 26 June 2022 Shift 1>Q 110

Choose the correct stability order of group

13

elements in their

+ 1

oxidation state.

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 26 June 2022 Shift 1>Q 111

The correct order of melting points of hydrides of group

16

elements is

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 26 June 2022 Shift 1>Q 112

Consider the following reaction :

$A + alkali \to B (Major Product)$

If $B$ is an oxoacid of phosphorus with no $P - H$ bond, then $A$ is

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 26 June 2022 Shift 1>Q 113

Which statement is not true with respect to nitrate ion test?

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 27 June 2022 Shift 1>Q 114

Match List - I with List - II.

	List-I ( $Si$ -Compounds)		List-II ( $Si$ -Polymeric/Other Products)
A	${({CH}_{3})}_{4} Si$	I	Chain Silicone
B	$({CH}_{3}) Si {(OH)}_{3}$	II	Dimeric Silicone
C	${({CH}_{3})}_{2} Si {(OH)}_{2}$	III	Silane
D	${({CH}_{3})}_{3} Si (OH)$	IV	$2 D$ - Silicone

Choose the correct answer from the options given below

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 27 June 2022 Shift 1>Q 115

Heating white phosphorus with conc.

NaOH

solution gives mainly

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