A salt can be produced by the reaction between:
A. a weak acid and weak base
B. metal oxide and water
C. metal and a mineral acid
D. metal oxide and a mineral acid

Q. A salt can be between produced by reaction.
A. A weak acid and weak base.
B. Metal oxide and water.
C. Metal and a mineral acid.
D. Metal oxide and a mineral acid.

Q. A metallic oxide $A$ is strongly acidic and forms violet vapors on warming and explodes violently at 230K giving out oxygen and a weak acidic oxide. The compound $A$ on dissolution in water gives characteristic purple color, then compound $A$ is:

Q. Identify X in the following reaction:
$X+Acid\to Salt+H_{2}O$