Question

In identification of cations, colour and of the precipitate formed after reaction with alkali, are major identification factors.

• A. solubility
• B. atomic mass
• C. size

Answer 1

The correct option is A solubility

In identifying the cations of given ionic salts, the keen markers or identification factors are:
(a) Colour of the precipitate formed after the reaction of ionic salt with an alkali.
(b) Solubility of the precipitate formed in the respective alkali.