Short Answer TypeWhen concentrated sulphuric acid was added to an unknown salt present in a test tube a brown gas (A) was involved. This gas intensified when copper turnings were added to this test tube. On cooling, the gas (A) changed into a colourless solid (B).
(i) Identify (A) and (B)
(ii) Write the structures of (A) and (B)
(iii) Why does gas (A) change to solid on cooling
Arrange the following in the decreasing order of their reducing character:
HF, HCl, HBr, HI
Reducing character depends on the ease of release of H. Down the group, atomic size of halogen increases, bond length increases, bond strength decreases, thus it becomes easier to release H. So, the correct order of reducing character is:
HF<HCl<HBr<HI
Out of chlorobenzene and benzyl chloride, which one gets easily hydrolysed by aqueous NaOH and why?
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