EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 8th January 2020 Shift 2>Q 23

HARD

JEE Main

IMPORTANT

Earn 100

White phosphorus on reaction with concentrated $N a O H$ solution in an inert atmosphere of $C O_{2}$ gives phosphine and compound $(X) . (X)$ on acidification with $H C l$ gives compound $(Y) .$ The basicity of compound $(Y)$ is:

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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 - 8th January 2020 Shift 2>Q 24

The increasing order of the atomic radii of the following elements is:

(a) C

(b) O

(c) F

(d) C l

(e) B r

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 8th April 2019 Shift 1>Q 25

Diborane

(B_{2} H_{6})

reacts independently with

O_{2}

and

H_{2} O

to produce, respectively:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 8th April 2018>Q 26

When metal

M

is treated with

NaOH

, a white gelatinous precipitate

X

is obtained, which is soluble in excess of

NaOH

. Compound

X

when heated strongly gives an oxide which is used in chromatography as an adsorbent. The metal

M

is

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 8th April 2018>Q 27

The compound that does not produce nitrogen gas by thermal decomposition is:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 8th April 2017>Q 28

The number of

S = O

and

S - OH

bonds present in peroxodisulphuric acid and pyrosulphuric acid respectively are:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 7th January 2020 Shift 2>Q 29

In the following reactions, products $(A)$ and $(B)$ , respectively, are:
$N a O H + C l_{2} \to (A) + s i d e p r o d u c t s$
$(h o t a n d c o n c .)$

$C a {(O H)}_{2} + C l_{2} \to (B) + s i d e p r o d u c t s$
$(d r y)$

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 7th January 2020 Shift 2>Q 30

The ammonia

({N H}_{3})

released on quantitative reaction of

0.6 g

urea

({N H}_{2} C O N H_{2})

with sodium hydroxide

(N a O H)

can be neutralized by

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 18 - The p-Block Elements>JEE Main - 7th January 2020 Shift 1>Q 31

The electron gain enthalpy (in

\frac{kJ}{m o l}

) of fluorine, chlorine, bromine and iodine, respectively, are