Acidified ${\mathrm{KMnO}}_4$ can be decolourised by :

Important Questions on The d- and f-Block Elements

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 10

The hydrated cupric chloride is strongly heated. Which of the following statement(s) is (are) correct for this:

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 11

For a catalyst which condition is/are essential:

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 12

Which of the following statement is/are correct:

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 13

Which pair of ions is coloured :

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 14

Which of the following set of metals can not form alloy :

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 15

Which of the following is/are not ferromagnetic :

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 16

Anhydrous ferric chloride is not prepared by:

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 17

${\mathrm{CuFeS}}_2+{\mathrm{O}}_2$ (excess) $\stackrel{\mathrm{\Delta }}{⟶}\mathrm{X}\left(\mathrm{s}\right)+\mathrm{Y}\left(\mathrm{s}\right)$ (Unbalanced Equation) :
Which is incorrect choice for $\left(\mathrm{X}\right)$ and $\left(\mathrm{Y}\right)$ ?