Oxidation numbers of P in $P O_{4}^{3 -}$ , of S in $S O_{4}^{2 -}$ and that of Cr in $C r_{2} O_{7}^{2 -}$ are respectively:

+3,+6 and +5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

+5,+3and +6

No worries! We‘ve got your back. Try BYJU‘S free classes today!

-3,+6 and +6

No worries! We‘ve got your back. Try BYJU‘S free classes today!

+5,+6 and +6

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D +5,+6 and +6
(I) $^{x} P O_{4}^{3 -} \Rightarrow x + 4 \times (- 2) = - 3$
$\Rightarrow x = - 3 + 8 = + 5$
$\Rightarrow x = + 5$
Oxidation number of $P = + 5$
(II) $^{x} S O_{4}^{2 -} \Rightarrow x + 4 \times (- 2) = - 2$
$\Rightarrow x = - 2 + 8$
$\Rightarrow x = + 6$
Oxidation number of $S = + 6$
(III) $^{x} C r_{2} O_{7}^{2 -} \Rightarrow 2 x + 7 \times (- 2) = - 2$
$\Rightarrow 2 x = - 2 + 14$
$\Rightarrow 2 x = 12$
$\Rightarrow x = \frac{12}{2} = + 6$

Suggest Corrections

Similar questions

C r_{2} O_{7}^{2 -}

C l O_{3}^{-}

P

P O_{4}^{3 -}

S

S O_{4}^{2 -}

C r

C r_{2} O_{7}^{2 -}

C r

[C r (H_{2} O)_{6}] C l_{3}, [C r (C_{6} H_{6})_{2}]

K_{2} [C r (C N)_{2} (O)_{2} (O_{2}) (N H_{3})]

H I O_{4}, H_{3} I O_{5}

H_{5} I O_{6}

Join BYJU'S Learning Program