Isolation of Metals [JEE (Based on NTA Guidelines-IIT Engg.) Mains Chemistry]: Questions 1 - 6 of 67

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Question 1

Appeared in Year: 2016

Question MCQ▾

During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 amperes is

Choices

Choice (4)Response

a.

55 minutes

b.

330 minutes

c.

220 minutes

d.

110 minutes

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Question 2

Question Match List-Ⅰ List-Ⅱ▾

Match the entries listed in column (I) with appropriate entries listed in column (II)

List-Ⅰ (Column-1)List-Ⅱ (Column-2)
(A)

Cupellation

(i)

Tin

(B)

Electro refining

(ii)

Titanium

(C)

Van Arkel method

(iii)

Silver

(D)

Poling

(iv)

Copper

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iv)
  • (iii)
  • (i)
  • (ii)

b.

  • (i)
  • (iv)
  • (ii)
  • (iii)

c.

  • (i)
  • (iv)
  • (iii)
  • (ii)

d.

  • (i)
  • (iii)
  • (ii)
  • (iv)

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Question 3

Question MCQ▾

Heating with carbon in absence of air is known as

Choices

Choice (4)Response

a.

Smelting

b.

Roasting

c.

Reduction

d.

Carbon-reduction

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Question 4

Question MCQ▾

Which of die following ore is best concentrated by froth floatation method?

Choices

Choice (4)Response

a.

Magnetite

b.

Malachite

c.

Cassiterite

d.

Galena

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Question 5

Question MCQ▾

Which of the following metal is obtained directly by

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 6

Question MCQ▾

Which of the following is not an ore?

Choices

Choice (4)Response

a.

Malachite

b.

Pig iron

c.

Bauxite

d.

Zinc blende

Edit