Assertion: `Na_(2)O` is basic oxide whereas `Cl_(2)O_(7)` is acidic oxide.
Reason: Elements on extreme left of the periodic table from basic oxides whereas elements on extreme right form acidic oxides.

Options

A. If both (A) and (R) are correct, but (R) is the correct explanation of (A).
B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A)
C. If (A) is correct, but (R) is incorrect.
D. If both (A) and (R) are incorrect.

Answer

B

Explanation

`Na_(2)O` with water forms a strong base whereas `Cl_(2)O_(7)` forms strong acid.
`Na_(2)O +H_(2)O to 2NaOH, Cl_(2)O_(7) +H_(2)O to 2HClO_(4)`