1
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements :

Statement I : None of the alkaline earth metal hydroxides dissolve in alkali.

Statement II : Solubility of alkaline earth metal hydroxides in water increases down the group.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Statement I is correct but Statement II is incorrect.
B
Statement I is incorrect but Statement II is correct.
C
Statement I and Statement II both are incorrect.
D
Statement I and Statement II both are correct.
2
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Match List-I with List-II

List-I
(Elements)
List-II
(Properties)
(a) Ba (i) Organic solvent soluble compounds
(b) Ca (ii) Outer electronic configuration $$6{s^2}$$
(c) Li (iii) Oxalate insoluble in water
(d) Na (iv) Formation of very strong monoacidic base


Choose the correct answer from the options given below :
A
(a)-(ii), (b)-(iii), (c)-(i) and (d)-(iv)
B
(a)-(iv), (b)-(i), (c)-(ii) and (d)-(iii)
C
(a)-(iii), (b)-(ii), (c)-(iv) and (d)-(i)
D
(a)-(i), (b)-(iv), (c)-(ii) and (d)-(iii)
3
JEE Main 2021 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
A s-block element (M) reacts with oxygen to form an oxide of the formula MO2. The oxide is pale yellow in colour and paramagnetic. The element (M) is :
A
Mg
B
Na
C
Ca
D
K
4
JEE Main 2021 (Online) 18th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Match List - I with List - II :

List - I List - II
(a) Be (i) treatment of cancer
(b) Mg (ii) extraction of metals
(c) Ca (iii) incendiary bombs and signals
(d) Ra (iv) windows of X-ray tubes
(v) bearings for motor engines


Choose the most appropriate answer from the option given below :
A
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
B
(a)-(iii), (b)-(iv), (c)-(v), (d)-(ii)
C
(a)-(iii), (b)-(iv), (c)-(ii), (d)-(v)
D
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
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