S-Block Elements Group 1 and 2 (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 14 - 20 of 49

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Question number: 14

» 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: 15

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which one of the following alkali metal is strong reducing agent?

Choices

Choice (4) Response

a.

k

b.

Cs

c.

Mg

d.

Question number: 16

» S-Block Elements Group 1 and 2 » General Introduction

MCQ▾

Question

Which of the following alkali metal is diamagnetic in nature?

Choices

Choice (4) Response

a.

b.

c.

K

d.

Mg

Question number: 17

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which one of the following oxide of alkali metal is used as refractory material?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 18

» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide

MCQ▾

Question

Write down the increasing order of melting points of alkali metals?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 19

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which category of salts of alkaline earth metals is not found in solid state but known in solution?

Choices

Choice (4) Response

a.

Bicarbonates

b.

Sulphates

c.

Hydroxides

d.

Carbonates

Question number: 20

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

When a piece of magnesium ribbon was heated to redness in an atmosphere of nitrogen and on cooling water was added, the gas evolved is?

Choices

Choice (4) Response

a.

Nitrogen

b.

Hydrogen

c.

Oxygen

d.

Ammonia

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