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1
JEE Main 2024 (Online) 4th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II :

LIST I
Mechanism steps		 LIST II
Effect
A. JEE Main 2024 (Online) 4th April Morning Shift Chemistry - Basics of Organic Chemistry Question 79 English 1 I. $$-$$ E effect
B. JEE Main 2024 (Online) 4th April Morning Shift Chemistry - Basics of Organic Chemistry Question 79 English 2 II. $$-$$ R effect
C. JEE Main 2024 (Online) 4th April Morning Shift Chemistry - Basics of Organic Chemistry Question 79 English 3 III. $$+$$ E effect
D. JEE Main 2024 (Online) 4th April Morning Shift Chemistry - Basics of Organic Chemistry Question 79 English 4 IV. $$+$$ R effect

Choose the correct answer from the options given below :

A
(A) - (I), (B) - (II), (C) - (IV), (D) - (III)
B
(A) - (II), (B) - (IV), (C) - (III), (D) - (I)
C
(A) - (III), (B) - (I), (C) - (II), (D) - (IV)
D
(A) - (IV), (B) - (III), (C) - (I), (D) - (II)
2
JEE Main 2024 (Online) 4th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which among the following is incorrect statement?

A
The electromeric effect is, temporary effect
B
Hydrogen ion $$(\mathrm{H}^{+})$$ shows negative electromeric effect
C
The organic compound shows electromeric effect in the presence of the reagent only.
D
Electromeric effect dominates over inductive effect
3
JEE Main 2024 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The set of meta directing functional groups from the following sets is :
A
$-\mathrm{CN},-\mathrm{NH}_2,-\mathrm{NHR},-\mathrm{OCH}_3$
B
$-\mathrm{CN},-\mathrm{CHO},-\mathrm{NHCOCH}_3,-\mathrm{COOR}$
C
$-\mathrm{NO}_2,-\mathrm{NH}_2,-\mathrm{COOH},-\mathrm{COOR} $
D
$-\mathrm{NO}_2,-\mathrm{CHO},-\mathrm{SO}_3 \mathrm{H},-\mathrm{COR}$
4
JEE Main 2024 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Lassaigne's test is used for detection of :
A
Phosphorous and halogens only
B
Nitrogen, Sulphur and Phosphorous only
C
Nitrogen, Sulphur, phosphorous and halogens
D
Nitrogen and Sulphur only
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