Hydrogen And Its Compounds Question 74
Question: Match list I with list II and select the correct answer using the codes given below the lists List I List II
[SCRA 2001]
- Heavy water Bicarbonates of Mg and Ca in water
- Temporary hard water No foreign ions in water
- Soft water $ D_2O $
- Permanent hard water Sulphates and chlorides of Mg and Ca in water Codes
Options:
A) 1-c, 2-d, 3-b, 4-a
B) 1-b, 2-a, 3-c, 4-d
C) 1-b, 2-d, 3-c, 4-a
D) 1-c, 2-a, 3-b, 4-d
Show Answer
Answer:
Correct Answer: D
Solution:
Heavy water is $ D_2O $ (1 - c) Temporary hard water contains bicarbonates of $ C{a^{2+}} $ and $ M{g^{2+}}(2-a) $ Soft water may have no foreign ions $ (3-b) $ . Permanent hard water contains sulphates and chlorides of $ C{a^{+2}} $ and $ M{g^{2+}}(4-d) $
BETA
