S Block Elements Question 166
Question: Which pair of substances gives same gaseous product, when these react with water
[CBSE PMT 1994]
Options:
A) $ Ca $ and $ CaH_2 $
B) $ Na $ and $ Na_2O_2 $
C) $ K $ and $ KO_2 $
D) $ Ba $ and $ BaO_2 $
Show Answer
Answer:
Correct Answer: A
Solution:
$ Ca+2H_2O\to Ca{{(OH)}_2}+H_2 $
$ CaH_2+2H_2O\to Ca{{(OH)}_2}+2H_2 $
BETA
