S-Block Elements Group 1 and 2-Industrial Uses (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 7 of 7

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Question number: 1

» S-Block Elements Group 1 and 2 » Industrial Uses » Cement

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MCQ▾

Question

The cement used in dental fillings is called?

Choices

Choice (4) Response

a.

Hard cement

b.

Quick lime

c.

Sorel cement

d.

Magnesia alva

Question number: 2

» S-Block Elements Group 1 and 2 » Industrial Uses » Plaster of Paris

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MCQ▾

Question

Addition of alum to plaster of Paris makes the setting very hard. The mixture is known as?

Choices

Choice (4) Response

a.

Dead plaster

b.

Burnt plaster

c.

Keene cement

d.

Chalk

Question number: 3

» S-Block Elements Group 1 and 2 » Industrial Uses » Cement

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MCQ▾

Question

What is composition of Duralumin?

Choices

Choice (4) Response

a.

5 % Al + 0.5 % Mg + 0.5 % Mn + 94 % Cu

b.

90 % Al + 0.5 % Mg + 0.5 % Mn + 4% Cu

c.

95 % Al + 0.5 % Mg + 0.5 % Mn + 4% Cu

d.

65 % Al + 0.5 % Mg + 25 % Mn + 4.5 % Cu

Question number: 4

» S-Block Elements Group 1 and 2 » Industrial Uses » Limestone

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MCQ▾

Question

If CO 2 is passed in excess into lime water, the milkiness first formed disappears due to?

Choices

Choice (4) Response

a.

formation of soluble magnesium hydroxide

b.

formation of soluble calcium carbonate

c.

formation of volatile calcium derivative

d.

reversal of original reaction

Question number: 5

» S-Block Elements Group 1 and 2 » Industrial Uses » Limestone

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MCQ▾

Question

Mortar is mixture of?

Choices

Choice (4) Response

a.

and

b.

, silica, water

c.

and silica

d.

, water

Question number: 6

» S-Block Elements Group 1 and 2 » Industrial Uses » Plaster of Paris

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MCQ▾

Question

Plaster of Paris is obtained on heating gypsum at?

Choices

Choice (4) Response

a.

150 0 C

b.

180 0 C

c.

200 0 C

d.

120 0 C

Question number: 7

» S-Block Elements Group 1 and 2 » Industrial Uses » Lime

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MCQ▾

Question

Slaked lime is obtained when water is added to?

Choices

Choice (4) Response

a.

b.

c.

d.

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