JEE Main 2021 (Online) 26th February Evening Shift | Isolation of Elements Question 66 | Chemistry

1

JEE Main 2021 (Online) 26th February Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Match List - I with List - II.

	List - I		List - II
(a)	Sodium Carbonate	(i)	Deacon
(b)	Titanium	(ii)	Castner-Kellner
(c)	Chlorine	(iii)	van-Arkel
(d)	Sodium hydroxide	(iv)	Solvay

Choose the correct answer from the options given below :

A

(a) $$ \to $$ (iv), (b) $$ \to $$ (iii), (c) $$ \to $$ (i), (d) $$ \to $$ (ii)

B

(a) $$ \to $$ (iv), (b) $$ \to $$ (i), (c) $$ \to $$ (ii), (d) $$ \to $$ (iii)

C

(a) $$ \to $$ (iii), (b) $$ \to $$ (ii), (c) $$ \to $$ (i), (d) $$ \to $$ (iv)

D

(a) $$ \to $$ (i), (b) $$ \to $$ (iii), (c) $$ \to $$ (iv), (d) $$ \to $$ (ii)

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JEE Main 2021 (Online) 26th February Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Match List - I with List - II.

	List - I		List - II
(a)	Siderite	(i)	Cu
(b)	Calamine	(ii)	Ca
(c)	Malachite	(iii)	Fe
(d)	Cryolite	(iv)	Al
		(v)	Zn

Choose the correct answer from the options given below :

A

(a) $$ \to $$ (i), (b) $$ \to $$ (ii), (c) $$ \to $$ (iii), (d) $$ \to $$ (iv)

B

(a) $$ \to $$ (iii), (b) $$ \to $$ (i), (c) $$ \to $$ (v), (d) $$ \to $$ (ii)

C

(a) $$ \to $$ (i), (b) $$ \to $$ (ii), (c) $$ \to $$ (v), (d) $$ \to $$ (iii)

D

(a) $$ \to $$ (iii), (b) $$ \to $$ (v), (c) $$ \to $$ (i), (d) $$ \to $$ (iv)

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JEE Main 2021 (Online) 26th February Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Calgon is used for water treatment. Which of the following statement is NOT true about Calgon?

A

It is also known as Graham's salt.

B

It is polymeric compound and is water soluble.

C

It does not remove Ca²⁺ ion by precipitation.

D

Calgon contains the 2^nd most abundant element by weight in the Earth's crust.

4

JEE Main 2021 (Online) 26th February Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Match List - I with List - II.

	List - I (Ore)		List - II (Element Present)
(a)	Kernite	(i)	Tin
(b)	Cassiterite	(ii)	Boron
(c)	Calamine	(iii)	Fluorine
(d)	Cryolite	(iv)	Zinc

Choose the most appropriate answer from the options given below :

A

(a) $$ \to $$ (i), (b) $$ \to $$ (iii), (c) $$ \to $$ (iv), (d) $$ \to $$ (ii)

B

(a) $$ \to $$ (iii), (b) $$ \to $$ (i), (c) $$ \to $$ (ii), (d) $$ \to $$ (iv)

C

(a) $$ \to $$ (ii), (b) $$ \to $$ (i), (c) $$ \to $$ (iv), (d) $$ \to $$ (iii)

D

(a) $$ \to $$ (ii), (b) $$ \to $$ (iv), (c) $$ \to $$ (i), (d) $$ \to $$ (iii)