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

EASY

JEE Advanced

IMPORTANT

Earn 100

Which of the following combinations will produce $H_{2}$ gas?

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 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]