Hydrogen And Its Compounds Question 54
Which of the following is not a hard water?
Options:
A) Water containing $ CaCl_2 $
B) Water containing dil. HCl
C) Water containing $ MgSO_4 $
D) None of these
Show Answer
Answer:
Correct Answer: D
Solution:
Water containing $ Ca^{+2},\ Mg^{+2} $ and $ H^{+}}(>{10^{-7}}M) $ is a hard water. $ H^{+}(aq)+CH_3COONa(aq) $ ⇌ $ CH_3COOH(aq)+Na^{+}(aq) $
BETA
