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

The molar conductivity of a conductivity cell filled with 10 moles of 20 mL NaCl solution is $${\Lambda _{m1}}$$ and that of 20 moles another identical cell heaving 80 mL NaCl solution is $${\Lambda _{m2}}$$. The conductivities exhibited by these two cells are same. The relationship between $${\Lambda _{m2}}$$ and $${\Lambda _{m1}}$$ is

A
$${\Lambda _{m2}}$$ = 2$${\Lambda _{m1}}$$
B
$${\Lambda _{m2}}$$ = $${\Lambda _{m1}}$$ / 2
C
$${\Lambda _{m2}}$$ = $${\Lambda _{m1}}$$
D
$${\Lambda _{m2}}$$ = 4$${\Lambda _{m1}}$$
2
JEE Main 2022 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The first ionization enthalpies of Be, B, N and O follow the order

A
O < N < B < Be
B
Be < B < N < O
C
B < Be < N < O
D
B < Be < O < N
3
JEE Main 2022 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of energy of absorption for the following metal complexes is :

A : [Ni(en)3]2+ , B : [Ni(NH3)6]2+ , C : [Ni(H2O)6]2+

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

Match List I with List II:

List I List II
(A) Sulphate (I) Pesticide
(B) Fluoride (II) Bending of bones
(C) Nicotine (III) Laxative effect
(D) Sodium arsinite (IV) Herbicide

Choose the correct answer from the options given below :

A
A-II, B-III, C-IV, D-I
B
A-IV, B-III, C-II, D-I
C
A-III, B-II, C-I, D-IV
D
A-III, B-II, C-IV, D-I
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