Unit#10: Hydroxy Compounds

1

Which compound is the simplest alcohol?

A Methanol B Ethanol C Propanol D Butanol

2

Alcohol consumption policies are mainly designed to protect:

A Industry profit B Public health C Fuel supply D Agriculture

3

Which factor increases alcohol-related health risks?

A Moderate use B Excessive use C Occasional use D Medical use

4

Combustion of alcohols produces:

A CO and H2 B CO2 and H2O C SO2 and H2O D CO2 and O2

5

Which gas is released during fermentation?

A Oxygen B Nitrogen C Carbon dioxide D Hydrogen

6

Which microorganism is used in fermentation of ethanol?

A Bacteria B Yeast C Virus D Algae

7

Which alcohol is commonly used in spirit lamps?

A Methanol B Ethanol C Butanol D Pentanol

8

Bioethanol is considered renewable because it is made from:

A Coal B Petroleum C Plants D Minerals

9

Which alcohol is widely used in laboratories as a solvent?

A Methanol B Ethanol C Propanol D All of these

10

Which sector regulates alcohol use for safety?

A Public health sector B Mining sector C Textile sector D Forestry sector

11

What is the functional group of alcohols?

A -COOH B -OH C -CHO D -NH2

12

Which alcohol causes blindness if consumed?

A Ethanol B Methanol C Propanol D Butanol

13

Hydration of ethene is an example of:

A Substitution reaction B Addition reaction C Elimination reaction D Oxidation reaction

14

Alcohols are used in pharmaceutical industry to make:

A Fuels only B Medicines and syrups C Fertilizers D Explosives

15

Alcohols are used in cosmetics mainly as:

A Coloring agents B Solvents and preservatives C Sweeteners D Fertilizers

16

What is the optimum temperature for fermentation?

A 0°C B 10°C C 30°C D 100°C

17

Which social issue is linked with alcohol misuse?

A Air pollution B Road accidents C Deforestation D Soil erosion

18

Excessive alcohol consumption mainly affects:

A Bones B Liver C Skin D Teeth

19

Which alcohol is poisonous and not used in drinks?

A Ethanol B Methanol C Propanol D Butanol

20

Which property of alcohols makes them useful as disinfectants?

A High melting point B Ability to kill microbes C Sweet taste D Insolubility in water

21

Ethanol is manufactured by fermentation of:

A Ethene B Glucose C Methane D Starch only

22

Alcohols are good fuels because they:

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

23

Alcohol production by fermentation is considered:

A Chemical process only B Biological process C Physical process D Nuclear process

24

Which reaction represents combustion of ethanol?

A C2H5OH → C2H4 + H2O B C2H5OH + O2 → CO2 + H2O C C2H5OH → CH3COOH D C2H5OH + HCl → C2H5Cl

25

Alcohols are classified as hydroxy compounds because they contain:

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