Punjab 12th Class Chemistry Chapter 8 Aliphatic Hydrocarbons Mcqs Test Online Punjab 12th Class Chemistry Chapter 8 Aliphatic Hydrocarbons Mcqs Test Online 1234567891011121314151617181920Show paginator Hide paginator Question 1 of 20Chemistry 1. Ethanol and dimethyl ether are best considered. 1.Diastereomers 2.Stereoisomers 3.Structural isomers 4.Enantiomers Question 1 of 20Question 2 of 20 2. The molecule of ethane posses which hybridization: 1.Sp³ 2.Sp² 3.SP 4.sp²dQuestion 2 of 20Question 3 of 20 3. A molecule is said to be chiral: 1.If is contains plane of symmetry 2.If it can be superimposed on its mirror image3.If it contains center of symmetry 4.If it cannot be superimposed to its mirror image Question 3 of 20Question 4 of 20 4. Benzene cannot undergo: 1.Elimination 2.Addition 3.Subsitution 4.Oxidation Question 4 of 20Question 5 of 20 5. Acidic hydrogen is present: 1.Acetylene 2.Ethane 3.Benzene 4.Ethene Question 5 of 20Question 6 of 20 6. The Sp³ hyrid orbitals are oriented in space at one angle. 1.180° 2.120°3.100° 4.109.5° Question 6 of 20Question 7 of 20 7. The geometry of acetylene is, 1.Trigonal 2.Bent 3.Angular 4.Linear Question 7 of 20Question 8 of 20 8. Catalyst used for friedal craft’s reaction is: 1.AlCl₃ 2.HNO₃ 3.BeCl₃ 4.NaClQuestion 8 of 20Question 9 of 20 9. Two compounds have the same composition and also have the same atoms attached to the same atoms, although with different orientations is space. These compounds are: 1.Position isomer 2.Structural 3.Identical 4.Stereoisomerism Question 9 of 20Question 10 of 20 10. Alkanes show geo-metrical isomers due to: 1.Rotation around a single bond 2.Asymmetry 3.Restricted rotation around a double bond 4.Resonance Question 10 of 20Question 11 of 20 11. The conversion of n – hexane into benzene by heating in the presence of pt is called: 1.Isomerization 2.Rearrangement 3.Dealkylation 4.Aromatization Question 11 of 20Question 12 of 20 12. Sodalime is: 1.KOH 2.NaOH 3.Mixture of Na & Ca hydroxide 4.CaO and NaOH Question 12 of 20Question 13 of 20 13. The isomers of a substance must have: 1.Same chemical properties 2.Same functional groups 3.Same molecular weight 4.Same structural formula Question 13 of 20Question 14 of 20 14. Which reaction is used as test for the presence of alkane: 1.Combustion 2.Catalytic hydrogenation 3.Reaction of cold diluted alkaline KMnO₄ 4.Polymerization Question 14 of 20Question 15 of 20 15. The general formula of alkane is 1.CnHn 2.CnH₂n 3.CnH₂4.CnH₂n₊₂ Question 15 of 20Question 16 of 20 16. In which one of the following compounds the benzene ring is isolated: 1.Naphtalene 2.Diphenyl methane 3.Phenanthrene 4.Anthracene Question 16 of 20Question 17 of 20 17. The marsh gas is: 1.Methane 2.Propane 3.Ethane 4.Butane Question 17 of 20Question 18 of 20 18. The electrophile in aromatic sulphonation is: 1.HSO⁻₄ 2.SO₃ 3.SO⁻₄4.H₂SO₄ Question 18 of 20Question 19 of 20 19. Shao of benzene molecule is: 1.Hyxagonal planer 2.Trigonal 3.Linear planer 4.Pyramidal Question 19 of 20Question 20 of 20 20. The benzene molecule contains: 1.Two double bonds 2.One double bond 3.Three double bonds 4.Delocalized Question 20 of 20 Loading... Test By Subject Punjab Test By Topics 12th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.