Q. 725.0( 3 Votes )

An organic compound A having the molecular formula C3H8O is a liquid at room temperature. The organic liquid A reacts with sodium metal to evolve a gas which bums causing a little explosion. When the organic liquid A is heated with concentrated sulphuric acid at 170 �C, it forms a compound B which decolourises bromine water. The compound B adds on one molecule of hydrogen in the presence of Ni as catalyst to form compound C which gives substitution reactions with chlorine. (a) What is compound A?
(b) What is compound B?
(c) What type of reaction occurs when A is converted into B?
(d) What is compound C?
(e) What type of reaction takes place when B is converted into C?

Answer :

(a) Compound A is propanol (CH3-CH2-CH2-OH)

(b) Compound B is propene (CH3-CH=CH2)

(c) Dehydration reaction

(d) Compound C is propane (CH3-CH2-CH3)

(d) Addition reaction

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