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

Correct order of stability of carbanion is :

JEE Main 2024 (Online) 4th April Evening Shift Chemistry - Basics of Organic Chemistry Question 17 English

A
d > c > b > a
B
c > b > d > a
C
d > a > c > b
D
a > b > c > d
2
JEE Main 2024 (Online) 4th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

What will be the decreasing order of basic strength of the following conjugate bases? $${ }^{-} \mathrm{OH}, \mathrm{R} \overline{\mathrm{O}}, \mathrm{CH}_3 \mathrm{CO} \overline{\mathrm{O}}, \mathrm{Cl}$$

A
$$\mathrm{C} \overline{\mathrm{I}}>\mathrm{R} \overline{\mathrm{O}}>{ }^{-} \mathrm{OH}>\mathrm{CH}_3 \mathrm{CO} \overline{\mathrm{O}}$$
B
$${ }^{-} \mathrm{OH}>\mathrm{R} \overline{\mathrm{O}}>\mathrm{CH}_3 \mathrm{CO} \overline{\mathrm{O}}>\mathrm{C} \overline{1}$$
C
$$\mathrm{C} \overline{\mathrm{I}}>{ }^{-} \mathrm{OH}>\mathrm{R} \overline{\mathrm{O}}>\mathrm{CH}_3 \mathrm{CO} \bar{O}$$
D
$$\mathrm{R} \overline{\mathrm{O}}>{ }^{-} \mathrm{OH}>\mathrm{CH}_3 \mathrm{CO} \overline{\mathrm{O}}>\mathrm{C} \overline{1}$$
3
JEE Main 2024 (Online) 4th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

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 19 English 1 I. $$-$$ E effect
B. JEE Main 2024 (Online) 4th April Morning Shift Chemistry - Basics of Organic Chemistry Question 19 English 2 II. $$-$$ R effect
C. JEE Main 2024 (Online) 4th April Morning Shift Chemistry - Basics of Organic Chemistry Question 19 English 3 III. $$+$$ E effect
D. JEE Main 2024 (Online) 4th April Morning Shift Chemistry - Basics of Organic Chemistry Question 19 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)
4
JEE Main 2024 (Online) 4th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

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
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