Modern ABC Chemistry Class 12. We covered all the Modern ABC Chemistry Class 12 MCQs in this post for free so that you can practice well for the exam.
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Modern ABC Chemistry Class 12 Objective for Students
Nylon is made up of:
(a) Polyethylene
(b) Polypropylene
(c) Polyamide
(d) Polyester
Option c – Polyamide
The process of separation of pure water from impurities is called:
(a) Distillation
(b) Sublimation
(c) Fractional crystallization
(d) Decantation
Option a – Distillation
Sulphuric acid cannot be used as:
(a) Drying agent
(b) Dehydrating agent
(c) Disinfectant
(d) Food preservative
Option d – Food preservative
The gas which is present in both natural gas and biogas is:
(a) Hydrogen
(b) Carbon monoxide
(c) Methane
(d) Butane
Option c – Methane
The number of elements in the second period of the periodic table is:
(a) Two
(b) Ten
(c) Eighteen
(d) Eight
Option d – Eight
Hot peppers are hot due to the presence of:
(a) Acetic acid
(b) Capsaicin
(c) Lycopene
(d) Sulphuric acid
Option b – Capsaicin
Which is not an anesthetic agent in surgical operations?
(a) Nitrous oxide
(b) Acetone
(c) Chloroform
(d) Ether
Option b – Acetone
Brine refers to:
(a) Pure water
(b) Starch water
(c) Saltwater
(d) Sweet water
Option c – Saltwater
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