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NEET UG CHEMISTRY MCQ: ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES
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Medium
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Analyzing
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Arrange the following compounds in order of their decreasing reactivity with an electrophile, .
(A) Chlorobenzene,
(B) 2,4-dinitrochlorobenzene,
(C) -nitrochlorobenzene
(A) Chlorobenzene,
(B) 2,4-dinitrochlorobenzene,
(C) -nitrochlorobenzene
View answer and explanation
Correct option: C
A>C>B
Option C (A>C>B) is correct because electron-donating groups increase reactivity towards electrophiles, while electron-withdrawing groups decrease reactivity. Chlorobenzene is activated compared to nitrochlorobenzenes.
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The number of different substitution products possible when ethane is allowed to react with bromine is sunlight are :
Correct order of stability is
Assertion (A) A mixture of o-nitrophenol and p-nitrophenol can be separated by steam distillation.
Reason (R) -nitrophenol is steam volatile whereas onitrophenol is not steam volatile. An organic compound having carbon, hydrogen and sulphur contains 4% of sulphur. The minimum molecular weight of the compound is Increasing order of acid strength is
a) Phenol b) 3-Nitrophenol
c) 3,5-dinitro phenol 4) 2,4,6-trinitro phenol Isobutyl chloride is :
Reason (R) -nitrophenol is steam volatile whereas onitrophenol is not steam volatile. An organic compound having carbon, hydrogen and sulphur contains 4% of sulphur. The minimum molecular weight of the compound is Increasing order of acid strength is
a) Phenol b) 3-Nitrophenol
c) 3,5-dinitro phenol 4) 2,4,6-trinitro phenol Isobutyl chloride is :