\[HBr\] and \[HI\] reduce sulphuric acid, \[HCl\] can reduce \[KMn{{O}_{4}}\] and \[HF\] can reduce [IIT 1981; MP PET 1993]

\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]

\[HBr\] and \[HI\] reduce sulphuric acid, \[HCl\] can reduce \[KMn{{O}

1.	\[HBr\] and \[HI\] reduce sulphuric acid, \[HCl\] can reduce \[KMn{{O}_{4}}\] and \[HF\] can reduce [IIT 1981; MP PET 1993]
A.	\[{{H}_{2}}S{{O}_{4}}\]
B.	\[KMn{{O}_{4}}\]
C.	\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]
D.	None of these
Answer» E.

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\[HBr\] and \[HI\] reduce sulphuric acid, \[HCl\] can reduce \[KMn{{O}_{4}}\] and \[HF\] can reduce [IIT 1981; MP PET 1993]

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