(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 (A) is incorrect, but (R) is correct. ltbr. (e) if both (A) and (R) are incorrect.
Q. Assertion (A): The amount CO in a gas sample can be determined by using the reaction
`I_(2)O_(5)+5COtoI_(2)+5CO_(2)`
IF gas sample liberates `127.g of I_(2)`. Then 70 g of CO were present in the sample.
Reason (R): CO gas is absorbed in ammonical CuCl solution.

Answer

B

Explanation

Moles of `I_(2)=(127)/(254)=(1)/(2)mol`
Moles of `CO=(5)/(2)`
Weight of `CO=(5)/(2)xx28=70.0`
Both (A) and (R) are correct but (R) is not the correct explanation of (A).