Unit#9: Hydrocarbons + Unit#10: Hydroxy Compounds

1

Which effect is caused by long-term alcohol use?

A Improved memory B Liver damage C Stronger bones D Better eyesight

2

Ethanol is manufactured by fermentation of:

A Ethene B Glucose C Methane D Starch only

3

Which industry uses alcohols for making syrups?

A Textile industry B Pharmaceutical industry C Steel industry D Mining industry

4

Which benefit of ethanol makes it important in medicine?

A High sweetness B Antiseptic nature C High toxicity D Strong acidity

5

Alkenes react with halogens to form:

A Alkanes B Dihalogen compounds C Alcohols D Aldehydes

6

Which petroleum fraction is used for making roads?

A Diesel B Bitumen C Petrol D Kerosene

7

Which hydrocarbon family shows homologous series with difference of CH2?

A Alkanes B Alkenes C Alkynes D All of these

8

Alcohols are used in cosmetics mainly as:

A Coloring agents B Solvents and preservatives C Sweeteners D Fertilizers

9

Main constituent of natural gas is:

A Ethane B Methane C Propane D Butane

10

Which condition is required for hydration of ethene?

A Low pressure B High pressure C Room temperature D Freezing temperature

11

Which alcohol is poisonous and not used in drinks?

A Ethanol B Methanol C Propanol D Butanol

12

Alcohols are classified as hydroxy compounds because they contain:

A Carbonyl group B Hydroxyl group C Carboxyl group D Amino group

13

Which alcohol burns with a blue flame?

A Methanol B Ethanol C Both methanol and ethanol D Propanol only

14

Commercial name of ethyne is:

A Natural gas B Biogas C Acetylene D Propylene

15

Which alcohol is mainly used as fuel additive?

A Methanol B Ethanol C Butanol D Pentanol

16

Which hydrocarbon gives sooty flame on burning?

A Alkane B Alkene C Alkyne D Both B and C

17

Unsaturated hydrocarbons mainly undergo which type of reactions?

A Substitution B Addition C Neutralization D Displacement

18

Which compound is the simplest alcohol?

A Methanol B Ethanol C Propanol D Butanol

19

Which test is used to detect unsaturation in hydrocarbons?

A Litmus test B Bromine water test C Flame test D Solubility test

20

Alcohols are good fuels because they:

A Produce smoke B Burn incompletely C Burn cleanly D Do not burn

21

Ethyne is commonly used for:

A Cooking B Welding C Lighting homes D Refrigeration

22

Which hydrocarbon contains only single covalent bonds?

A Alkene B Alkyne C Alkane D Aromatic hydrocarbon

23

Which of the following is a physical property of alkenes?

A Undergo addition reactions B Decolorize bromine water C Insoluble in water D React with KMnO4

24

Which catalyst is commonly used for hydrogenation?

A Iron B Nickel C Copper D Zinc

25

Which alcohol is safe for limited human consumption?

A Methanol B Ethanol C Propanol D Butanol