(A) : To prepare aldehydes from primary alcohols , acidified `KMnO_4 " or " K_(2) Cr_(2)O_7` is not used.
(R) : Strong oxidising agents like acidified `KMnO_(4) " or " K_(2)Cr_(2)O_(7)` oxidise aldehydes to carboxylic acids .

Options

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

Answer

A