`underline(A) overset(4KOH ,O_2)to underst("(हरा) ")(2B +2H_2 O)`
` 3 underline(B ) overset( 4HCI) to underset("(बैंगनी) ")(2underline(C ) +MnO_2 + 2H_2 O`
`2underline (C ) overset( H_2 O , K I ) to 2 underline(A) + 2KOH +underline(D) `
अभिक्रियाओं के उपरोक्त क्रम में, `underline(A)` तथा `underline(D)` क्रमशः है :

Options

A. `KIO_3` तथा `MnO_2`
B. `MnO_2` तथा `KIO_3`
C. ` KI` तथा `KMnO_4`
D. `KI `तथा `KMnO_4`

Answer

B

Explanation

`underset((A))( 2MnO_2 +4KOH +O_2 ) to underset("(हरा) (B ))(2K_2 Mn O_4 +2 H_2 O) `
`underset((B))( 3K_2 MnO_4 +4 HCI to `
` underset("(बैंगनी) (C )) (2KMnO_4 +MnO_2 + ) 4KCI +2H_2 O`
` underset( (C ))(2 KmNO_4) +KI +H_2 O to underset((A))(2MnO_2 ) + underset("(D)")(KIO_3 + KOH)`