Assertion : `CO_2` is a gas at room temperature while `SiO_2` is a crystalline soild. Reason : `SiO_2` is a network of silicon and oxygen atoms joined by multiple bonds.
A
If both (A) and (R) are correct and (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.
Text Solution
Verified by Experts
The correct Answer is:
C
`SiO_2` is a three-dimensional network solid in which each Si atom is covalently bonded in a tetrahedral manner to four O atoms.
