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Question

Which reactions are used for the preparation of the halogen acid ?


A
2KBr+H2SO4K2SO4+2HBr
(conc.)
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B
CaF2+H2SO4CaSO4+2HF
(conc.)
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C
NaCl+H2SO4NaHSO4+HCl
(conc.)
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D
2KI+H2SO4K2SO4+2HI
(conc.)
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Solution

The correct options are
B $${CaF_2 + H_2 SO_4\rightarrow CaSO_4+2HF}$$
(conc.)
C $${NaCl + H_2 SO_4\rightarrow NaHSO_4+HCl}$$
(conc.)
Above reaction produces halogen acid with $$H_2SO_4$$.
144758_153754_ans.png

Chemistry

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