1
JEE Main 2021 (Online) 17th March Evening Shift
+4
-1
The functional groups that are responsible for the ion-exchange property of cation and anion exchange resins, respectively, are :
A
$$-$$SO3H and $$-$$NH2
B
$$-$$NH2 and COOH
C
$$-$$NH2 and $$-$$SO3H
D
$$-$$SO3H and $$-$$COOH
2
JEE Main 2021 (Online) 17th March Morning Shift
+4
-1
The INCORRECT statement(s) about heavy water is (are)

(A) used as a moderator in nuclear reactor

(B) obtained as a by-product in fertilizer industry

(C) used for the study of reaction mechanism

(D) has a higher dielectric constant than water

Choose the correct answer from the options given below :
A
(D) only
B
(B) and (D) only
C
(B) only
D
(C) only
3
JEE Main 2021 (Online) 16th March Evening Shift
+4
-1
The correct statements about H2O2 are :

(A) used in the treatment of effluents.

(B) used as both oxidising and reducing agents.

(C) the two hydroxyl groups lie in the same plane.

(D) miscible with water.

Choose the correct answer from the options given below :
A
(A), (C) and (D) only
B
(A), (B), (C) and (D)
C
(A), (B) and (D) only
D
(B), (C) and (D) only
4
JEE Main 2021 (Online) 16th March Morning Shift
+4
-1
Given below are two statements :

Statement I : H2O2 can act as both oxidising and reducing agent in basic medium.

Statement II : In the hydrogen economy, the energy is transmitted in the form of dihydrogen.

In the light of the above statements, choose the correct answer from the options given below :
A
Both statement I and statement II are false
B
Statement I is false but statement II is true
C
Statement I is true but statement II is false
D
Both statement I and statement II are true
JEE Main Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
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Calculus
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