Organic Chemistry Test 02

Total Questions: 30

1 - Coal is blackish complex mixture of compounds of:

A ) carbon
B ) hydrogen
C ) oxygen
D ) all of the above

2 - Conversation of wood into coal is called:

A ) Carbonization ✅
B ) destructive distillation
C ) fractional distillation
D ) all of the above

3 - The %age of carbon in coal is:

A ) 40-60
B ) 50-70
C ) 40–80
D ) 40–90 ✅

4 - The carbon contents in the peat is:

A ) 60% ✅
B ) 70%
C ) 80%
D ) 90%

5 - The % age of carbon in lignite is:

A ) 60%
B ) 70% ✅
C ) 80%
D ) 90%

6 - The % age of carbon in bituminous is:

A ) 60%
B ) 70%
C ) 80% ✅
D ) 90%

7 - Coal gas is the mixture of:

A ) hydrogen
B ) methane
C ) carbon monoxide
D ) all of the above

8 - Coal tar contains compounds:

A ) benzene
B ) phenol
C ) toluene
D ) all of the above

9 - The % age of carbon in coke is:

A ) 60
B ) 70
C ) 90
D ) 98 ✅

10 - Natural gas contains:

A ) methane
B ) ethane
C ) propane
D ) all of these

11 - Alky1 radical is derivative of:

A ) alkane ✅
B ) alkene
C ) alkyne
D ) all of these

13 - Wood contain Carbon about:

A ) 10%
B ) 20%
C ) 30%
D ) 40% ✅

14 - When one hydrogen atom is removed from alkane it gives:

A ) Alkenes
B ) Alkynes
C ) Alky1 radical ✅
D ) Aromatic compound

15 - Which of the following organic compounds is used in moth balls?

A ) Benzene
B ) Acetylene
C ) Naphthalene ✅
D ) Isobutylene

16 - How many elements are known today:

A ) 92
B ) 110
C ) 118 ✅
D ) 122

18 - Pulses and beans are sources of:

A ) Proteins ✅
B ) Vitamins
C ) Carbohydrates
D ) Oils

19 - Reactions of organic compounds are molecular in nature due to the presence of:

A ) ionic bond
B ) peptide bond
C ) covalent bond ✅
D ) none of these

21 - Soft coal used in thermal power station is:

A ) Peat
B ) Lignite ✅
C ) Bituminous
D ) Anthracite

23 - Coke is mainly used as a/an agent in the extraction of metals especially iron:

A ) Oxidizing
B ) Reducing ✅
C ) Oxidization and reducing
D ) None of these

24 - Which of the following is used for surfacing of roads and roofs?

A ) Pitch ✅
B ) Coke
C ) Ammoniacal liquor
D ) Coal gas

25 - In case of alkanes 'n' ranges from:

A ) 1-20
B ) 1-30
C ) 1-40 ✅
D ) 1-50

26 - Geraniol is an organic compound which consists of two functional groups?

A ) Carbon–Carbon double bond and carboxylic group
B ) Carbon–Carbon triple bond and hydroxy1 group
C ) Carboxylic group and alcoholic group
D ) Carbon -Carbon double bond and hydroxy1 group ✅

27 - Energy required to break C-C bond is:

A ) 200 kJ/mol
B ) 355 kJ/mol ✅
C ) 351 kJ/mol
D ) 452 kJ/ mol

28 - Which of the following is the correct order on the basis of bond strength:

A ) C - C > Si - Si ✅
B ) Si - Si > C - C
C ) C - C = Si - Si
D ) None of these

29 - Energy required to break a C - O bond is:

A ) 200 kJ/ mol
B ) 355 kJ/ mol
C ) 351 kJ/mol ✅
D ) 452kJ/ mol

30 - Which of the following compounds is present in human sweet?

A ) Aldehydes
B ) Ketones
C ) Carboxylic acids ✅
D ) Ethers