EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 31 August 2021 Shift 1>Q 37

EASY

JEE Main

IMPORTANT

Earn 100

In the structure of the dichromate ion, there is a :

33.33% studentsanswered this correctly

Important Questions on The d- and f-Block Elements

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 31 August 2021 Shift 1>Q 38

Which one of the following lanthanides exhibits

+ 2

oxidation state with diamagnetic nature ? (Given

Z

for

Nd = 60, Yb = 70, La = 57, Ce = 58)

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 31 August 2021 Shift 1>Q 39

The number of hydrogen bonded water molecule(s) associated with stoichiometry

{CuSO}_{4} \cdot 5 H_{2} O

is __________.

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 31 August 2021 Shift 1>Q 40

Consider the sulphides

HgS, PbS, CuS, {Sb}_{2} S_{3}, {As}_{2} S_{3}

and

CdS .

Number of these sulphides soluble in

50 % {HNO}_{3}

is ___________ .

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 3 September 2020 Shift 2>Q 41

The incorrect statement is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 27 July 2021 Shift 1>Q 42

The type of hybridisation and magnetic property of the complex

{[{MnCl}_{6}]}^{3 -},

respectively, are:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 27 August 2021 Shift 2>Q 43

The additon of dilute

NaOH

to

{Cr}^{3 +}

salt solution will give :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 27 August 2021 Shift 2>Q 44

Potassium permanganate on heating at

513 K

gives a product which is :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 27 August 2021 Shift 1>Q 45

The nature of oxides

V_{2} O_{3}

and

CrO

is indexed as

' X'

and

' Y'

type respectively. The correct set of

X

and

Y

is: