Question 1: Palette 1/6

JEE Advanced 2022 MCQ

LIST-I contains compounds and LIST-II contains reactions

List-I	List-II
(I) $\mathrm{H}_{2} \mathrm{O}_{2}$	(P) $\mathrm{Mg}\left(\mathrm{HCO}_{3}\right)_{2}+\mathrm{Ca}(\mathrm{OH})_{2} \rightarrow$
(II) $\mathrm{Mg}(\mathrm{OH})_{2}$	(Q) $\mathrm{BaO}_{2}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow$
(III) $\mathrm{BaCl}_{2}$	(R) $\mathrm{Ca}(\mathrm{OH})_{2}+\mathrm{MgCl}_{2} \rightarrow$
(IV) $\mathrm{CaCO}_{3}$	(S) $\mathrm{BaO}_{2}+\mathrm{HCl} \rightarrow$
	(T) $\mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2}+\mathrm{Ca}(\mathrm{OH})_{2} \rightarrow$

Match each compound in LIST-I with its formation reaction(s) in LIST-II, and choose the correct option

A

I $\rightarrow$ Q; II $\rightarrow$ P; III $\rightarrow$ S; IV $\rightarrow$ R

B

I $\rightarrow$ T; II $\rightarrow$ P; III $\rightarrow$ Q; IV $\rightarrow$ R

C

I $\rightarrow$ T; II $\rightarrow$ R; III $\rightarrow$ Q; IV $\rightarrow$ P

D

I $\rightarrow$ Q; II $\rightarrow$ R; III $\rightarrow$ S; IV $\rightarrow$ P

Question 2: Palette 2/6

JEE Advanced 2020 MCQ

Which of the following liberates O₂ upon hydrolysis?

A

Pb₃O₄

B

KO₂

C

Na₂O₂

D

Li₂O₂

Question 3: Palette 3/6

JEE Advanced 2014 MCQ

Hydrogen peroxide in its reaction with KIO₄ and NH₂OH respectively, is acting as a

A

reducing agent, oxidising agent

B

reducing agent, reducing agent

C

oxidising agent, oxidising agent

D

oxidising agent, reducing agent

Question 4: Palette 4/6

JEE Advanced 2010 MSQ

The reagent(s) used for softening the temporary hardness of water is (are)

A

Ca₃(PO₄)₂

B

Ca(OH)₂

C

Na₂CO₃

D

NaOCl

Question 5: Palette 5/6

JEE Advanced 1985 MCQ

Hydrogen gas will not reduce

A

heated cupric oxide

B

heated ferric oxide

C

heated stannic oxide

D

heated aluminium oxide

Question 6: Palette 6/6

JEE Advanced 1983 MCQ

Heavy water is

A

H₂¹⁸O

B

water obtained by repeated distillation

C

D₂O

D

water at 4^oC