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) COD
(b) BOD
(c) DO
(d) All of these
The correct answers to the above question in:
Answer: (d)
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Read more environmental chemistry Based General Science Questions and Answers
Question : 1
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 : 2
Which one of the following correctly defines the state of glass?
a) Condensed gas
b) Super cooled liquid
c) Crystalline solid
d) Liquid crystal
Answer »Answer: (b)
Question : 3
The non-viable particulate is among the following is
a) Bacteria
b) Moulds
c) Dust
d) Fungi
Answer »Answer: (c)
Dust
Question : 4
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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