Monthly archives: October, 2016

Hydrocarbons MCQs – 5

1) An alkene having molecular formula C7H14 was subjected to ozonolysis in the presence of zinc o dust. An equimolar amount of the following two compounds was obtained. The IUPAC name of the alkene is a) 3, 4-dimethyl-3-pentene b) 3, 4-dimethyl-2-pentene c) 2, 3-dimethyl-3-pentene d) 2, 3-dimethyl-2-pentene. 2) Benzene can be converted into toluene by …

Hydrocarbons MCQs – 7

1) Conjugated double bonds are present in a) 1, 5 – Hexadiene b) Isobutylene c) Butylene d) Butadiene 2) Benzaldehyde on reduction with NaBH4 gives a) Benzoic acid b) Phenol c) Benzyl alcohol d) Benzene 3) Acetaldehyde is produced from one of the following in presence of aqueous KMnO4 solution: a) C2H6 b) C2H5Cl c) C2H5OH d) CH3OH 4) The Rosenmundi …

Hydrocarbons MCQs – 6

1) Which of the following is the strongest o, p-directing group ? a) -OH b) -Cl c) d) 2) Which of the following is the most reactive towards ring nitration ? a) o-Xylene b) Toluene c) p-Xylene d) m-Xylene. 3) One mole of a hydrocarbon having molecular weight 78 is subjected to ozonolysis and the …

Hydrocarbons MCQs – 4

1) During chlorination of methane to methyl chloride, the propagation step is represented by a) b) c) d) 2) Methane reacts with excess of chlorine in diffused sunlight to give the final product a) Chloroform b) Carbon tetrachloride c) Methylene chloride d) Methyl chloride. 3) An alkane with molecular weight 72 upon chlorination gives only …

Hydrocarbons MCQs – 3

1) In a mixture of n-hexadecane and -methylnaphthalene, if the percentage of n-hexadecane is 80, the cetane number of the fuel is : a) 20 b) 100 c) 80 d) zero. 2) The raw material used in a Fishcer-Tropsch process for the manufacture of synthetic petroleum is a) Water gas b) Water gas + excess …

Hydrocarbons MCQs – 2

1) The IUPAC name of the compound, is a) 1 -Chloro-3-methylbutane b) 2-Methyl-4-chlorobutane c) 2-Methyl-1-chlorobutane d) 1-Chloropentane 2) The IUPAC name of is a) 4-Hydroxy-1-methylpentanal b) 4-Hydroxy-2-methylpentanal c) 2-Hydroxy-4-methylpentanal d) 2-Hydroxy-2-methylpentanal 3) The IUPAC name of CH3OC2H5 is a) Methyl ethyl ether b) Ethyl methyl ether c) Methoxyethane d) Ethoxymethane 4) CH3CH2CH2CH(CH = CH2)CH2CH2CH3 is …

Hydrocarbons MCQs – 1

1) Which of the following is an addition (chain growth) polymer? 1. Nylon – 66 a) p-nitrophenol b) o-nitrophenol c) m-nitrophenol d) phenols 2) The number of carbon atoms present in the hydrocarbon eicosane a) 10 b) 20 c) 15 d) 8 3) The hybridisation of the central carbon on an allene is a) sp b) …

Chemical Equilibrium MCQs – 3

1) The active mass of 64 g of HI in a 2 litre flask would be a) 0.25 b) 0.50 c) 1.0 d) 2.0 2) The factor that changes the equilibrium constant of the reaction A2(g) + B2(g) 2AB is a) Total pressure b) c) Temperature d) The presence of a catalyst 3) The reaction that proceeds …