Applied Chemistry 1st Year. We covered all the Applied Chemistry 1st Year MCQs in this post for free so that you can practice well for the exam.
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Applied Chemistry 1st Year Objective for Students
Ethanol containing 5% water is known as
(a) rectified spirit
(b) absolute alcohol
(c) dilute alcohol
Option a – rectified spirit
The antiseptic action of the dettol is due to the presence of
(a) chlorobenzol
(b) chloroxylenol
(c) chloroquine
(d) chloroamphenicol
Option b – chloroxylenol
An organic compound is used in making picric acid (explosive), phenolphthalein (an indicator), bakelite, salol, aspirin, salicylic acid, etc. The organic compound is
(a) benzene
(b) phenol
(c) nitrobenzene
(d) aniline
Option b – phenol
Which of the following the gas causes the explosion in coal mines?
(a) Carbon dioxide
(b) Nitrogen
(c) Butane
(d) Methane
Option d – Methane
We covered all the applied chemistry 1st year mcqs above in this post for free so that you can practice well for the exam.
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