Sodium metal reacts with `Al_(2)O_(3)` at high temperature to give a sodium compound X X reacts with carbon dioxide in water to form Y.Y is

Options

A. `Na_(2)O_(2)`
B. `Na_(2)O`
C. `Na_(2)CO_(3)`
D. `NaAlO_(2)`

Answer

C

Explanation

On account of the low value of ionization enthalpy and high value of oxidation potential, sodium metal acts as a storng reducing agent:
`6Na+Al_(2)O_(3)rarr2Al+3Na_(2)O`
`Na_(2)O+CO_(2)rarrNa_(2)CO_(3)(x)`
Basic Acidic (Y)
oxide oxide