Engineering Chemistry Syllabus 1st Year. We covered all the Engineering Chemistry Syllabus 1st Year MCQs in this post for free so that you can practice well for the exam.
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Engineering Chemistry Syllabus Objective 1st Year for Students
The oxidation product of trichloromethane is:
(A) Phosgene
(B) Sulphonyl chloride
(C) Ethane
(D) Dichloromethane
Option a – Phosgene
Which of the following can damage the cornea on direct contact?
(A) Trichloromethane
(B) Dichloromethane
(C) Tetrachloromethane
(D) Dichlorodifluoromethane
Option b – Dichloromethane
The reaction between haloalkane and haloarenes to give alkylbenzene in the presence of sodium metal is:
(A) Groove’s reaction
(B) Wurtz reaction
(C) Fittig’s reaction
(D) Wurtz-Fittig reaction
Option d – Wurtz-Fittig reaction
The temperature required to convert 1-chloro-4-nitrobenzene into 4-nitrophenol is:
(A) 433K
(B) 623K
(C) 443K
(D) 523K
Option a – 433K
Which of the following groups increases the rate of alkaline hydrolysis of haloarenes?
(A) Nitro group
(B) Alkyl radical
(C) Electron-donating
(D) Electron-repelling
Option a – Nitro group
Electrophilic substitution in phenyl chloride is possible due to:
(A) Positive inductive effect of the halogen atom
(B) Negative inductive effect of the halogen atom
(C) Positive resonance effect of the halogen atom
(D) Negative resonance effect of the halogen atom
Option c – Positive resonance effect of the halogen atom
Major chlorination product of chlorobenzene is:
(A) 1,2-dichlorobenzene
(B) p-dichlorobenzene
(C) 1,3-dichlorobenzene
(D) o-dichlorobenzene
Option b – p-dichlorobenzene
Conversion of benzene into phenyl bromide is:
(A) Electrophilic addition reaction
(B) Electrophilic substitution reaction
(C) Nucleophilic addition reaction
(D) Nucleophilic substitution reaction
Option b – Electrophilic substitution reaction
Phenyl amine reacts with sodium nitrite and dil. hydrochloric acid produces:
(A) Chlorobenzene
(B) Benzene diazonium chloride
(C) Phenyl ammonium chloride
(D) Benzyl chloride
Option b – Benzene diazonium chloride
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