What is Soda ash?

Excess of $Na^{+}$ ions in our system causes:

Which of the following statements is $CORRECT$?

$A$ chemical $A$ is used for the preparation of washing soda to recover ammonia. When $CO_2$ is bubbled through an aqueous solution of $A$,the solution turns milky. It is used in white washing due to its disinfectant nature. What is the chemical formula of $A$?

The colour given to the flame by sodium salts is

The reducing power of a metal depends on various factors. Suggest the factor which makes $Li$ metal the strongest reducing agent in aqueous solution.