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

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

Balance the equation : CaF_(2) + H_(2)SO_(4) + H_(3)BO_(3) to CaSO_(4) + BF_(3) + H_(2)O

Which reaction cannot be used for the preparation of the halogen acid (A) 2KBr+ Conc. H_(2)SO_(4) rarr (B) NaCl+ Conc. H_(2)SO_(4) rarr (C) NaHSO_(4) +NaCl rarr (D) CaF_(2) + H_(2)SO_(4) rarr

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

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.

Complete the following equation (i) Ag+PCl_(5)rarr (ii) CaF_(2)+H_(2)SO_(4)rarr