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[" 36.In which of the following reaction...

[" 36.In which of the following reactions conc."H_(2)SO_(4)" is used as an oxidising "r" ( "],[[" (i) "CaF_(2)+H_(2)SO_(4)longrightarrow CaSO_(4)+2HF],[" (ii) ",2HI+H_(2)SO_(4)longrightarrow I_(2)+SO_(2)+2H_(2)O],[" (iii) ",Cu+2H_(2)SO_(4)longrightarrow CuSO_(4)+SO_(2)+2H_(2)O],[" (iv) ",NaCl+H_(2)SO_(4)longrightarrow NaHSO_(4)+HCl]]

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CaF_(2)+H_(2)SO_(4) to

CaSO_(3)darr+H_(2)SO_(4)toCaSO_(4)+SO_(2)uarr+H_(2)O

CaSO_(3)darr+H_(2)SO_(4)toCaSO_(4)+SO_(2)uarr+H_(2)O

CaSO_(3)darr+H_(2)SO_(4)toCaSO_(4)+SO_(2)uarr+H_(2)O

{:(2NaOH+H_(2)SO_(4)rarrNa_(2)SO_(4)+2H_(2)O),("Base Acid"):}

The reactions in which conc. H_(2)SO_(4) is used as an oxidising agent are I. 2HI+H_(2)SO_(4)rarrI_(2)+SO_(2)+2H_(2)O II. NaCl+2H_(2)SO_(4)rarrNaHSO_(4)+HCl III. CaF_(2) | H_(2)SO_(4)rarrCaSO_(4)+2HF IV. Cu+2H_(2)SO_(4)rarrCuSO_(4)+SO_(2)+2H_(2)O Choose the correct option.

BaSO_(3)darr+H_(2)SO_(4) to BaSO_(4) darr+SO_(2)uarr+H_(2)O

BaSO_(3)darr+H_(2)SO_(4) to BaSO_(4) darr+SO_(2)uarr+H_(2)O

BaSO_(3)darr+H_(2)SO_(4) to BaSO_(4) darr+SO_(2)uarr+H_(2)O