Class 10 Chemistry MCQs – Practice Test 8 (Chapter 8)

Hydrocarbons Notes Questions with Answers PDF Download – Test 8

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Hydrocarbons MCQs – Practice Test 8 PDF Download

MCQ 36: Tetra halides undergo dehalogenation forming an alkyne on treatment with:

calcium hydroxide
alcoholic potassium hydroxide
sodium hydroxide
Zn dust

MCQ 37: Which of the following is true about alkanes?

they are insoluble in water
they are more dense than water
they are essentially polar
they are reactive towards most ionic compounds

MCQ 38: Which of the following has carcinogenic effects at high concentrations?

tetra chloromethane
dichloromethane
methyl chloride
Trichloromethane

MCQ 39: Which color of KMnO₄ solution is discharged when an alkene is treated with a dilute alkaline aqueous solution of KMnO4?

red
brown
orange
pink

MCQ 40: Which of the following has two halogen atoms on adjacent carbon atoms?

vicinal dihalide
Tetrahalide
acetylene
Trichloromethane

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Hydrocarbons MCQs

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