When $CO$ is passed over solid $NaOH$ heated to $200\,^{\circ}C$,it forms

Correct order of solubility is

The set of raw materials used in the $SOLVAY$ process are:

Which of the following statements are correct regarding lithium $(Li)$ and magnesium $(Mg)$?
$I$) They react slowly with water
$II$) Their bicarbonates are solids
$III$) Their chlorides are not soluble in ethanol
$IV$) Their nitrates decompose easily on heating
The correct option is

Which among the following statements is $NOT$ true?

The process of caustification is used for the preparation of which of the following?