JEE Main 2022 · 28 Jul · Shift 1 · Chemistry Q69

← JEE Main 2022 · 28 Jul · Shift 1

ChemistryList match+4 / -1Question 69 of 90

Match List - I with List - II, match the gas evolved during each reaction.

Choose the correct answer from the options given below :

List - I

A
$\mathrm{(NH_4)_2Cr_2O_7\xrightarrow{\Delta}}$
B
$\mathrm{KMnO_4+HCl\rightarrow}$
C
$\mathrm{Al+NaOH+H_2O\rightarrow}$
D
$\mathrm{NaNO_3\xrightarrow{\Delta}}$

List - II

I
$\mathrm{H_2}$
II
$\mathrm{N_2}$
III
$\mathrm{O_2}$
IV
$\mathrm{Cl_2}$

(A) - (II), (B) - (III), (C) - (I), (D) - (IV)

(A) - (III), (B) - (I), (C) - (IV), (D) - (II)

(A) - (II), (B) - (IV), (C) - (I), (D) - (III)

(A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Answer and worked solution

Official answer: C

Gases. Ammonium dichromate gives $\mathrm{N_2}$ , $\mathrm{KMnO_4}$ with HCl gives $\mathrm{Cl_2}$ , Al with NaOH gives $\mathrm{H_2}$ , and $\mathrm{NaNO_3}$ gives $\mathrm{O_2}$ .

(C)

Topics:Group 15 Important compounds (KMnO4, K2Cr2O7)

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JEE Main 2022 · 28 Jul · Shift 1, Chemistry question 69