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Practice MCQ Questions and answers on Chemistry-GK

Learn and practice General Knowledge questions and answers on Chemistry with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-6 section-2

Each section contains 100 MCQs on Chemistry .
51
Indane gas is mixture of
Discuss
Answer & Solution
Answer: Option C
Solution:
Indane gas is a mixture of butane and propane.
52
The charcoal used to decolourise brown sugar solution is
Discuss
Answer & Solution
Answer: Option C
Solution:
A brown solution of raw sugar is decolourized when boiled with animal charcoal.
53
The major component in the LPG is
Discuss
Answer & Solution
Answer: Option B
Solution:
The major component in the LPG is Butane.
54
Domestic cooking gas consists mostly of
Discuss
Answer & Solution
Answer: Option B
Solution:
Domestic cooking gas consists mostly of Liquified butane and isobutane.
55
Which one of the following is known as the 'brown coal'?
Discuss
Answer & Solution
Answer: Option D
Solution:
Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat.
56
L.P.G. is mostly liquefied
Discuss
Answer & Solution
Answer: Option C
Solution:
L.P.G. is mostly liquefied butane.
57
Which one of the following is not coal variety?
Discuss
Answer & Solution
Answer: Option C
Solution:
Dolomite is not coal variety.
58
Which of the following is used to increase the anti-knocking property of petrol ?
Discuss
Answer & Solution
Answer: Option B
Solution:
An anti-knocking agent is the substance which is used to reduce the engine knocking. It increases the octane number of the fuel. It helps in auto-ignition by raising the temperature and pressure. TEL is tetraethyl Lead which is used as an anti-knocking compound.
59
The quality of petrol is expressed in terms of
Discuss
Answer & Solution
Answer: Option C
Solution:
Ignition quality of petrol is expressed by octane number and that of diesel by cetane number.
60
Which of the following type of coal has the lowest proportion of volatile matter ?
Discuss
Answer & Solution
Answer: Option D
Solution:
Anthracite has the lowest proportion of volatile matter.