1
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of reduction potentials of the following pairs is

A. Cl2/Cl$$-$$

B. I2/I$$-$$

C. Ag+/Ag

D. Na+/Na

E. Li+/Li

Choose the correct answer from the options given below.

A
A > C > B > D > E
B
A > B > C > D > E
C
A > C > B > E > D
D
A > B > C > E > D
2
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The metal ion (in gaseous state) with lowest spin-only magnetic moment value is :

A
V2+
B
Ni2+
C
Cr2+
D
Fe2+
3
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separated out by the use of benzene.

Reason R : Benzoic acid is soluble in hot water.

In the light of the above statements, choose the most appropriate answer from the options given below.

A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is NOT the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
4
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

During halogen test, sodium fusion extract is boiled with concentrated HNO3 to

A
remove unreacted sodium
B
decompose cyanide or sulphide of sodium
C
extract halogen from organic compound
D
maintain the pH of extract.
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