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Online Tests
Chemistry Fsc Part 2 Chapter 8 Online Test MCQs With Answers
Question # 1
The presence of a double bond in a compound is the sign of
Choose an answer
Saturation
Un-saturation
Substitution
None of these
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Question # 2
Which gas is used for artificial ripening of fruits
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Ethene
Metheane
Propane
Ethyne
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Question # 3
The presence of a double bond in a compound is the sign of.
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Saturation
Unsaturation
Substitution
None of these
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Question # 4
Preparation of vegetable ghee involves
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Halogenation
Hydrogenation
Hydroxylation
Dehydrogenation
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Question # 5
Which alkyne reacts with water and form aldehyde
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Ethyne
Propyne
1- Butyne
2- Butyne
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Question # 6
Which compound is the most reactive
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Benzene
Ethene
Ethane
Ethyne
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Question # 7
An aldehyde is reduced to alkane with hydrazine is the presence of
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KOH
NaOH
CaO and NaOH
Ca(OH)2
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Question # 8
Vinyl acetylene combines with HCl to form
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Polyacetylene
Benzene
Chloroprene
Divinyl acetylene
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Question # 9
When ethyl alcohol is heated with conc. H2SO4 it produces ethene. The temperature required is as proximately
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100
o
C
78
o
C
Above 200
o
C
140- 170
o
C
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Question # 10
Ethyne on oxidation with strong alkaline KMnO4 changes to
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Ethyl alcohol
Acetaldehyde
Vinyl alcohol
Glyoxal
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Question # 11
Which substance is formed by the catalytic oxidation of methane at 100
o
C, 200 atmospheric pressure and copper catalyst
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Methanol
Methanal
Methanoic acid
All of these
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Question # 12
Which one of the following substances have garlic odour and a colourless gas.
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CH3OH
HCOOH
CH2=CH2
HC= CH
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Question # 13
Which one of the following gases is used welding purpose usualy.
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Methane
Ethane
Ethene
Acetylene
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Question # 14
Acetylene reacts with ammoniacal cuprous chloride a red ppt is formed. This red ppt is of
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Copper chlorite
Coper chlorate
Cupric oxide
Copper acetylide
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Question # 15
In which reactions alkane is not produced
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Subatier's and Sendern reaction
Koibe's reaction
Wolf -Kishner's reduction
Dow's process
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Question # 16
Ranney nickel is prepared by reacting dilute NaOH solution with.
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Nickel
Brass
Nickel and aluminum alloy
Nickel oxide
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Question # 17
Which one of the followings is major product when HBr reacts with 2-butene
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2- bromobutane
1- bromobutane
1-1 di bromobutane
1,2 di bromobutane
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