Question

Column I		Column II
A	Intermolecular redox change	1	$CO _2+ C \rightarrow 2 CO$
B	Intramolecular redox change	2	$As _2 O _3+3 H _2 S$
C	Auto-redox change	3	$KClO _4 \rightarrow KCl +2 O _2$
D	Precipitation	4	$C _3 O _2 \rightarrow CO _2+2 C$

• A. A= 3 ,B= 1 ,C= 4 ,D= 2
• B. A= 3 ,B=2 ,C=4 ,D= 1
• C. A= 1 ,B=3 ,C=4 ,D= 2
• D. A= 4 ,B=2,C= 1 ,D= 3

Answer 1

Answer: (C)

Correct answer is (c) A= 1 ,B=3 ,C=4 ,D= 2