Identify and write $A$ and $B$ in the following reactions
${C H}_{3} - {C H}_{2} - {C H}_{2} - O H 95 p e r c e n t H_{2} {S O}_{4} - ------------- \to 453 K A R a n e y N i - ------ \to B$

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Solution

Propanol undergoes dehydration on treating with conc. $H_{2} S O_{4}$ to yield propene.
Propene undergoes hydrogenation to produce propane when treated with $R a i n y N i$

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