Green Chemistry and Nanochemistry Class 12. We covered all the Green Chemistry and Nanochemistry Class 12 in this post for free so that you can practice well for the exam.
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Green Chemistry and Nanochemistry Class 12 Objective for Students
Which is not a renewable energy source?
(A) Biofuels
(C) Wind energy
(D) Petrochemicals
Option d – Petrochemicals
The less hazardous insecticide is
(A) DDT
(B) BHC
(C) Chloroform
(D) Carbon tetrachloride
Option b – BHC
According to green chemistry, adipic acid is to be prepared from
(A) Benzene
(B) n-Hexane
(C) Glucose
(D) Citric acid
Option c – Glucose
Benzene is
(A) Volatile
(B) Carcinogenic
(C) Pollutes air
(D) All of these
Option d – All of these
The halogenated organic solvent is
(A) CH₂Cl₂
(B) CHCl3
(C) CCl4
(D) All of these
Option d – All of these
The development that meets the needs of the present without compromising the ability of future generations to meet their own need is known as
(A) Continuous development
(B) Sustainable development
(C) True development
(D) Irrational development
Option b – Sustainable development
The energy efficiency of chemical reactions is increased by
(A) Carrying out reactions at room temperature.
(B) By use of proper catalyst.
(C) By use of micro-organisms for organic synthesis.
(D) All of these
Option d – All of these
The measure of the number of atoms from the starting material present in useful products is
(A) Design for energy efficiency
(B) ZWT
(C) Prevention of waste
A good economy of reaction is
(A) the Formation of valuable products in the reaction
(B) the Requirement of low money for reaction.
(C) Formation of products at a low price
(D) Conversion of maximum atoms of reactants in useful products.
Option d – Conversion of maximum atoms of reactants in useful products
To minimize the energy crises of pollution, chemists should adopt
(A) Synthetic organic chemistry
(B) Pharmacology
(C) Industrialization
(D) Green chemistry
Option d – Green chemistry
The concept of green chemistry was proposed by
(A) Berzelius
(B) Newton
(C) Paul T. Anastas
(D) Paul Enarlich
Option c – Paul T. Anastas
Green chemistry is concerned with
(A) Prevention of pollution
(B) Decreasing energy crises
(C) Prevention of the formation of hazardous products
(D) All of these
Option d – All of these
ZWT is
(A) Zero Waste Tolerance
(B) Zero Waste Technology
(C) Waste products should be zero in chemical reactions.
(D) Both ‘B’ and ‘C’
Option d – Both ‘B’ and ‘C’
The use of Ash from thermal power stations to manufacture bricks is an example of
(A) ZWT
(C) Use of safer solvent
(D) Less hazardous chemical synthesis
Option a – ZWT
We covered all the green chemistry and nanochemistry class 12 above in this post for free so that you can practice well for the exam.
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