S-Block Elements Group 1 and 2-Industrial Uses (NEET Chemistry): Questions 1 - 7 of 7

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Question number: 1

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

MCQ▾

Question

The cement used in dental fillings is called?

Choices

Choice (4) Response
a.

Sorel cement

b.

Hard cement

c.

Magnesia alva

d.

Quick lime

Question number: 2

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

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.

Chalk

c.

Burnt plaster

d.

Keene cement

Question number: 3

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

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

MCQ▾

Question

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

Choices

Choice (4) Response
a.

reversal of original reaction

b.

formation of soluble calcium carbonate

c.

formation of volatile calcium derivative

d.

formation of soluble magnesium hydroxide

Question number: 5

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

MCQ▾

Question

Mortar is mixture of?

Choices

Choice (4) Response
a.

CaCO3 and SiO2

b.

CaO and silica

c.

CaCO3 , SiO2 water

d.

Ca(OH)2 , silica, water

Question number: 6

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

MCQ▾

Question

Plaster of Paris is obtained on heating gypsum at?

Choices

Choice (4) Response
a.

120 0 C

b.

200 0 C

c.

150 0 C

d.

180 0 C

Question number: 7

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

MCQ▾

Question

Slaked lime is obtained when water is added to?

Choices

Choice (4) Response
a.

CaSO4.12H2O

b.

CaCl2

c.

CaO

d.

CaCO3

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