(Hydrocarbons) MCQs + Answer

Q.1 Which molecule contains a carbon-carbon double bond?
	A.	Ethane
	B.	Ethene
	C.	Ethyne
	D.	Ethyl alcohol



Q.2)	Which product is obtained when chloromethane (or methyl chloride) is reduced?
	A.	Ethane
	B.	Ethene
	C.	Methane
	D.	Ethyne



Q.3)	Which reacts explosively with methane?
	A.	F2
	B.	Cl2
	C.	Br2
	D.	I2



Q.4)	By dehydration we mean, the removal of
	A.	Hydrogen
	B.	Water
	C.	Halogen
	D.	Hydrogen halide



Q.5)	Ethane and ethyne can be differentiated by
	A.	Hydrogenation
	B.	Bromine water
	C.	Dilute alkaline aqueous solution of KMnO4
	D.	Hydrohalogenation



Q.6)	Which is used for dehydrohalogenation?
	A.	Br2, water
	B.	Conc. H2SO4
	C.	Al2O3
	D.	Alcoholic KOH



Q.7)	Which substance reacts with KMnO4 to produce oxalic acid?
	A.	Ethane
	B.	Ethene
	C.	Ethyne
	D.	Ethyl alcohol



Q.8)	The reaction of alkyl halides takes place in the presence of
	A.	Al2O3 at 350 0c
	B.	Conc. H2SO4 at 170 0C
	C.	Zn (dust)
	D.	Zn + HCl



Q.9)	Which process produces an alkane?
	A.	Combustion
	B.	Hydration
	C.	Dehydration
	D.	Hydrogenation



Q.10)	Does not react with aqueous solution of bromine?
	A.	C2H6
	B.	C2H4
	C.	C2H2
	D.	C3H6

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