JEE Main 2021 (Online) 25th July Evening Shift | s-Block Elements Question 71 | Chemistry

1

JEE Main 2021 (Online) 25th July Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Match List I with List II :

	List-I Elements		List-II Properties
(a)	Li	(i)	Poor water solubility of $${I^ - }$$ salt
(b)	Na	(ii)	Most abundant element in cell fluid
(c)	K	(iii)	Bicarbonate salt used in fire extinguisher
(d)	Cs	(iv)	Carbonate salt decomposes easily on heating

Choose the correct answer from the options given below :

A

(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

B

(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)

C

(a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)

D

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

2

JEE Main 2021 (Online) 25th July Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

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.

3

JEE Main 2021 (Online) 22th July Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

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)

4

JEE Main 2021 (Online) 20th July Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

The set in which compounds have different nature is :

A

B(OH)₃ and H₃PO₃

B

B(OH)₃ and Al(OH)₃

C

NaOH and Ca(OH)₂

D

Be(OH)₂ and Al(OH)₃

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