1
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Given below are two statements :

Statement I : Retardation factor (Rf) can be measured in meter/centimeter.

Statement II : Rf value of a compound remains constant in all solvents.

Choose the most appropriate answer from the options given below :
A
Statement I is true but statement II is false
B
Statement I is false but statement II is true
C
Both statement I and statement II are true
D
Both statement I and statement II are false
2
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is correct structure of tyrosine?
A
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Biomolecules Question 79 English Option 1
B
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Biomolecules Question 79 English Option 2
C
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Biomolecules Question 79 English Option 3
D
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Biomolecules Question 79 English Option 4
3
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following reaction is an example of ammonolysis?
A
C6H5COCl + C6H5NH2 $$ \to $$ C6H5CONHC6H5
B
C6H5CH2CN $$\buildrel {[H]} \over \longrightarrow $$ C6H5CH2CH2NH2
C
C6H5CH2CN $$\buildrel {HCl} \over \longrightarrow $$ C6H5$$\mathop N\limits^ + $$H3Cl$$-$$
D
C6H5CH2Cl + NH3 $$ \to $$ C6H5CH2NH2
4
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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
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