The products A and B formed in the following | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The reaction of chromyl chloride $(CrO_2Cl_2)$ with $NaOH$ produces sodium chromate $(Na_2CrO_4)$ as follows:$CrO_2Cl_2 + 4NaOH \rightarrow Na_2Cr

Vedclass · Accepted Answer

$A = Na_2CrO_4, B = CrO_5$

Vedclass · Answer

(A) The reaction of chromyl chloride $(CrO_2Cl_2)$ with $NaOH$ produces sodium chromate $(Na_2CrO_4)$ as follows:$CrO_2Cl_2 + 4NaOH \rightarrow Na_2CrO_4 + 2NaCl + 2H_2O$Therefore,$A = Na_2CrO_4$.Sodium chromate reacts with hydrogen peroxide $(H_2O_2)$ in an acidic medium $(HCl)$ to form the deep blue colored chromium pentoxide $(CrO_5)$:$Na_2CrO_4 + 2HCl + 2H_2O_2 \rightarrow CrO_5 + 2NaCl + 3H_2O$Therefore,$B = CrO_5$.

The products $A$ and $B$ formed in the following reactions are:
$CrO_2Cl_2 + 4NaOH \rightarrow A + 2NaCl + 2H_2O$
$A + 2HCl + 2H_2O_2 \rightarrow B + 3H_2O$

Similar Questions

Write a note on oxides and oxoanions of transition elements.

When a mixture of $NaCl$,$K_{2}Cr_{2}O_{7}$ and conc. $H_{2}SO_{4}$ is heated in a dry test tube,a red vapour $(X)$ is evolved. This vapour $(X)$ turns an aqueous solution of $NaOH$ yellow due to the formation of $Y$. $X$ and $Y$,respectively,are

Which compound is formed when iron reacts with carbon?

$A$ hard and resistant metal alloy generally used in the tip of the nib of a fountain pen is

The colour imparted by $Co(II)$ compounds to glass is

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The products $A$ and $B$ formed in the following reactions are:$CrO_2Cl_2 + 4NaOH \rightarrow A + 2NaCl + 2H_2O$$A + 2HCl + 2H_2O_2 \rightarrow B + 3H_2O$