View Full Version : which of following salt is (are) basic?


Smooth Operater
10-05-2006, 01:44 AM
I. NaNO3
II. NaCN
III. Na2CO3

The correct answer is II and III only. But why? how would you deduce this type of question. I am having with this type of problem. thanks!:)

Smooth Operater
10-10-2006, 01:22 AM
bump

How Sleepy??!!
10-11-2006, 01:00 AM
This is a simple question - easier than you may imagine. If placed in water, you will see that the salts in 2 and 3 are from a strong base and weak acid - so they would be overall basic. In 1 however, the salt is formed from NaOH and HNO3 (sodium hydroxide and nitric acid) - a strong base and a strong acid. Since they are both strong, they cancel each other out and the resulting salt will be neutral, not basic. Good luck studying!!