Hydrocarbons Test 02

Total Questions: 20

1 - The alkanes consisting of C5 to C10 are:

A ) gases
B ) liquids ✅
C ) solids
D ) plasma

2 - Chloroform is used for:

A ) anesthesia ✅
B ) cure of fever
C ) ink
D ) toys

3 - Alkanes are least reactive compounds because they are:

A ) saturated hydrocarbons ✅
B ) unsaturated hydrocarbons
C ) both a and b
D ) none of the above

4 - Which is the main component of natural gas?

A ) methane ✅
B ) propane
C ) butane
D ) propyne

6 - In shoe polishes, which chemical is used:

A ) ethanol
B ) methanol
C ) carbon black ✅
D ) formaldehyde

7 - In dry cleaning, which chemical is used:

A ) Chloroform
B ) carbon tetrachloride ✅
C ) acetaldehyde
D ) ethanol

8 - Some orchids attract bees for pollination by producing:

A ) alkanes ✅
B ) alkenes
C ) alkynes
D ) all of these

9 - Dehydration means removal of:

A ) water ✅
B ) halogen
C ) hydrogen
D ) all of these

10 - Benzene is formed by the polymerization of:

A ) alkene
B ) alkane
C ) acetylene ✅
D ) CH4

12 - It is used to prepare Mustard gas:

A ) Ethene ✅
B ) Propane
C ) Alcohol
D ) Butane

13 - Marsh gas consists of:

A ) Methane ✅
B ) Ethane
C ) Propane
D ) Butane

14 - Saturated hydrocarbons are also called:

A ) Olefins
B ) Paraffins ✅
C ) Alkenes
D ) Alkynes

15 - Acetylene produces oxyacetylene flame with:

A ) Hydrogen
B ) Oxygen ✅
C ) Nitrogen
D ) Chlorine

16 - Example of simplest alkane is:

A ) Methane ✅
B ) Ethane
C ) Propane
D ) All of these

17 - Which one of the following does not react with Chlorine in dark?

A ) Methane ✅
B ) Ethene
C ) Propene
D ) Benzene

18 - Ethene is a colourless gas with

A ) Pungent odour
B ) Pleasant odour ✅
C ) Garlic like odour
D ) Stinky odour

19 - Which one is also called olefins?

A ) Alkanes
B ) Alkenes ✅
C ) Alkynes
D ) Alcohols

20 - Carbon tetrachloride is used in:

A ) fertilizers
B ) dry cleaning ✅
C ) metallurgy
D ) anesthesia