International Chemistry Quiz. We covered all the International Chemistry Quiz MCQs in this post for free so that you can practice well for the exam.
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International Chemistry Quiz Objective for Students
An ether is more volatile than an alcohol having the same molecular formula. This is due to:
(A) Dipolar character of ethers
(B) Alcohols having resonance structures
(C) Inter-molecular hydrogen bonding in ethers
(D) Inter-molecular hydrogen bonding in alcohols
Most reactive toward hydrolysis is:
(A) Diethyl ether
(B) 2-ethoxyprop-1-ene
(C) 2-ethoxypropane
(D) Disecpropyl ether
Option b – 2-ethoxyprop-1-ene
Anisole and cyclohexyl methyl ether consume how many moles of conc. HI:
(A) 2
(B) 3
(C) 4
(D) 5
Option b – 3
With conc. HBr ethyl phenyl ether yields:
(A) Phenol and ethyl bromide
(B) Bromobenzene and ethanol
(C) Phenol and ethane
(D) Bromobenzene and ethane
Option a – Phenol and ethyl bromide
The oxidation of a secondary alkanol with Cr (VI) leads to the formation of:
(A) An alkanone and Cr (II)
(B) An aldehyde and Cr (III)
(C) An alkanone and Cr (III)
(D) An aldehyde and Cr (II)
Option c – An alkanone and Cr (III)
Phenol, when it first reacts with concentrated sulfuric acid and then with concentrated nitric acid, gives:
(A) o-nitrophenol
(B) p-nitrophenol
(C) nitrobenzene
(D) 2, 4, 6-trinitrobenzene
Option d – 2, 4, 6-trinitrobenzene
The decomposition of ethers by HI or HBr is called:
(A) Zerewitinoff’s reaction
(B) Ziesel’s method
(C) Williamson’s method
(D) Hell-Volhard-Zelinsky reaction
Option b – Ziesel’s method
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