S Block Elements Question 156
Question: Which is quick lime
[EAMCET 1993]
Options:
A) $ Ca{{(OH)}_2} $
B) $ CaO $
C) $ CaCO_3 $
D) $ Ca{{(OH)}_2}+H_2O $
Show Answer
Answer:
Correct Answer: B
Solution:
$ CaO $ - (quick lime) $ Ca{{(OH)}_2} $ - (slaked lime) $ Ca{{(OH)}_2}+H_2O $ - an aqueous suspension of $ Ca{{(OH)}_2} $ in water is called lime water. $ CaCO_3 $ (lime stone).