Question

In the following redox equation,
$xU{O}^{+2}+C{r}_2{O}_7^{2-}\to aU{O}_2^{2+}+zC{R}^{+3}+b{H}_{2}O$
The values of coefficients x, y and z respectively are:

• A. 3,8,2
• B. 3,8,7
• C. 3,2,4
• D. None of the above

Answer 1

The correct option is A 3,8,2

The balanced chemical equation may be written as

$3U{O}^{2+}+{C{r}_2{O}_7}^{2-}+8H^{+}\to 3{U{O}_2}^{2+}+2C{r}^{+3}+4H_{2}O$

On comparison,

$x=3$, $y=8$, $z=2$

Hence, A is correct