Question

$N{a}_{2}Cr{O}_4+H_{2}S{O}_4\to$
For the above said reaction select correct statement :

• A. It is a redox reaction in which green solution of $\left[Cr\right(H_{2}O{)}_6{]}^{3+}$ is produced
• B. One of the product in reaction has trigonal planar structure
• C. Dimeric bridged tetrahedral complex is produced
• D. Dark blue colour is obtained in reaction

Answer 1

The correct option is C Dimeric bridged tetrahedral complex is produced

$2Cr{O}_4^{2-}\rightleftharpoons C{r}_2{O}_7^{2-}+H_{2}O\left(Yellow\right)(d^{3}s,tetrahedral)$