set 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 3 EXERCISES
The following question based on organic chemistry topic of general science mcq
(a) chemical properties
(b) physical properties
(c) structural formula
(d) molecular formula
The correct answers to the above question in:
Answer: (d)
Organic compounds having same molecular formula but differ from each other in physical properties or chemical properties or both are known as isomers.
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Question : 1
On the basis of following features identify the correct option A. Drinks containing ethanol B. These drinks are major source of income to government
a) Soft drinks
b) Carbonated beverages
c) Alcoholic beverages
d) Rectified spirit
Answer »Answer: (c)
Question : 2
Which one of the following is the correct sequence in increasing order of molecular weights of the hydrocarbons?
a) Propane, butane, ethane and methane
b) Butane, ethane, propane and methane
c) Methane, ethane, propane and butane
d) Butane, propane, ethane and methane
Answer »Answer: (c)
Question : 3
The functional group present in CH3COOC2H5 is
a) ester
b) aldehydic
c) ketonic
d) carboxylic
Answer »Answer: (a)
Question : 4
‘Drinking alcohol’ is very harmful and it ruins the health. ‘Drinking alcohol’ stands for:
a) drinking ethyl alcohol
b) drinking propyl alcohol
c) drinking methyl alcohol
d) drinking isopropyl alcohol
Answer »Answer: (a)
Question : 5
While cooking, if the bottom of the vessel is getting blackened on the outside, it means that
a) the fuel is wet.
b) the fuel is not burning completely.
c) the food is not cooked completely.
d) the fuel is burning completely.
Answer »Answer: (b)
Question : 6
On the basis of mode of formation, polymers can be classified
- as addition polymers
- as condensation polymers
- as copolymers
- as synthetic polymers
a) 1 and 2
b) 1 and 4
c) 1, 2 and 3
d) 1, 2, 3 and 4
Answer »Answer: (a)
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