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Question

MnO2+HClΔ−−−−−−−A(g)
A(g)+F2(excess)573K−−−−−−B(g)
B(l)+U(s)C(g)+D(g)
The gases A, B, C and D are respectively :

A
Cl2, ClF3, UF6, ClF
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B
O2, O2F2, U2O3, OF2
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C
Cl2, ClF, UF6, ClF3
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D
O2, OF2, U2O3, O2F2
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Solution

The correct option is A Cl2, ClF3, UF6, ClF
The gases A, B, C and D are Cl2, ClF3, UF6, ClF respectively.
When manganese dioxide is heated with HCl, chlorine gas is obtained.
MnO2+4HClΔ−−−−−−−Cl2(g)+MnCl2+2H2O
Chlorine reacts with fluorine to form chlorine trifluoride.
Cl2(g)+3F2(excess)573K−−−−−−2ClF3(g)
Chlorine trifluoride reacts with uranium to form uranium hexa fluoride and chlorine mono fluoride.
3ClF3(l)+U(s)UF6(g)+3ClF(g)

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