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Q.

Dichromate ion in acidic medium oxidizes stannous ion as:
$x {Sn}^{2 +} + y {Cr}_{2} O_{7}^{2 -} + z H^{+} \to a {Sn}^{4 +} + b {Cr}^{3 +} + {cH}_{2} O$ then which is not true

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a

$The value of x : y is 1 : 3$

b

$The value of z - c is 7$

c

$a : b is 3 : 2$

d

$The value of x + y + z is 18$

answer is A.

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Detailed Solution

$3 S_{n}^{2 +} + 14 H^{+} + {Cr}_{2} O_{7}^{2 -} \to 3 {Sn}^{2 +} + 2 {Cr}^{3 +} + 7 H_{2} O$

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