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(a). IF both (A) and (R) are correct and...

(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: 5.0 " mol of "ferrous oxalate are completely oxidised by 2.5 moles of acidic solution of `K_(2)Cr_(2)O_(7)`.
Reason(R): n-factor of ferrous oxalate against dichromate is 3.

Text Solution

Verified by Experts

The correct Answer is:
A
`m" Eq of "FeC_(2)O_(4)=m" Eq of "Cr_(2)O_(7)^(2-)`
`5xx3=2.5xx6`
n factor for `FeC_(2)O_(4)=3`
Hence (R) is true and is the correct explanation of (A)
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Knowledge Check

  • Both (A) and (R) are ture and (R) is the correct explanation of (A)

    A
    Both (A) and (R) are true and (R) is the correct explanation of (A)
    B
    Both (A) and (R) are true but (R) is not the correct explanation of (A)
    C
    (A) is true but (R) is false
    D
    Both(A) and (R) are false