set 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 3 EXERCISES
The following question based on environmental chemistry topic of general science mcq
(a) Condensed gas
(b) Super cooled liquid
(c) Crystalline solid
(d) Liquid crystal
The correct answers to the above question in:
Answer: (b)
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Read more environmental chemistry Based General Science Questions and Answers
Question : 1
The non-viable particulate is among the following is
a) Bacteria
b) Moulds
c) Dust
d) Fungi
Answer »Answer: (c)
Dust
Question : 2
The type of pollution caused by spraying of DDT
a) Air and water
b) Air
c) Air and soil
d) Air, water and soil
Answer »Answer: (d)
DDT causes water, air and soil pollution.
Question : 3
The false statement among the followings is:
a) Limestone acts as a sink for SOx
b) The average residence time of NO is one month
c) SOx can be removed from flue gases by passing through a solution of citrate ions
d) Ammonia acts as a sink for NOx
Answer »Answer: (b)
The average residence time of NO is 4 days.
Question : 4
The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was
a) Methylamine
b) Ammonia
c) Methyl isocyanate
d) Phosgene
Answer »Answer: (c)
Methyl isocyanate, CH3 – N = C = O
Question : 5
Which of the following is a measure of organic pollution of water –
a) COD
b) BOD
c) DO
d) All of these
Answer »Answer: (d)
Question : 6
Which of the following practices will not come under green chemistry?
a) Using H2O2 for bleaching purpose instead of using chlorine based bleaching agents.
b) Using bicycle for travelling small distances instead of using petrol/ diesel based vehicles.
c) If possible, making use of soap made of vegetable oils instead of using synthetic detergents.
d) Using plastic cans for neatly storing substances.
Answer »Answer: (d)
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