Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Two inorganic compounds A and B were heated in a dry test tube. A evolved a colourless gas which turned lead acetate paper black and B evolved a gas which turned lime water milky. The anions in A and B respectively are :
A
, 
B
S 2– , 
C
, 
D
S 2– , 
Text Solution
Verified by ExpertsThe correct answer is:
B
S 2– produce H 2 S gas on heating, which turns lead acetate paper black. 
produces CO 2 gas on heating, which turn lime water milky. 
also produce SO 2 gas on heating, which turn lime water milky.
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