EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Advanced Paper 1 - 2015>Q 8

HARD

JEE Advanced

IMPORTANT

Earn 100

The correct statement(s) about $C r^{2 +}$ and $M n^{3 +}$ is (are)

[Atomic number of Cr = 24 and Mn = 25]

50% studentsanswered this correctly

Important Questions on The d- and f-Block Elements

MEDIUM

JEE Advanced

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Advanced Paper 2 - 2019>Q 3

Consider the following reactions (unbalanced)

Z n + H o t c o n c . H_{2} S O_{4} \to G + R + X

Z n + c o n c . N a O H \to T + Q

G + H_{2} S + {N H}_{4} O H \to Z (a p r e c i p i t a t e) + X + Y

Choose the correct option(s).

EASY

JEE Advanced

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Advanced Paper 2 - 2017>Q 4

Which of the following combinations will produce

H_{2}

gas?

MEDIUM

JEE Advanced

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Advanced Paper 1 - 2019>Q 7

Fusion of

M n O_{2}

with

K O H

in presence of

O_{2}

produces a salt

W .

Alkaline solution of

W

upon electrolytic oxidation yields another salt

X .

The manganese containing ions present in

W

and

X,

respectively, are

Y

and

Z .

Correct statement(s) is (are)

HARD

JEE Advanced

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Advanced Paper 1 - 2015>Q 8

The correct statement(s) about

C r^{2 +}

and

M n^{3 +}

is (are)

[Atomic number of Cr = 24 and Mn = 25]