A) \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] and conc. \[{{H}_{2}}S{{O}_{4}}\]
B) \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] and \[HCl\]
C) \[{{K}_{2}}S{{O}_{4}}\] and conc. \[{{H}_{2}}S{{O}_{4}}\]
D) \[{{H}_{2}}S{{O}_{4}}\] and \[HCl\]
Correct Answer: A
Solution :
Mixture of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] and conc. \[NaHC{{O}_{3}}+C{{l}_{2}}\,\to \] is known as chromic acid.
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