S-Block Elements Group 1 and 2 (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 21 - 28 of 49

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Question number: 21

» S-Block Elements Group 1 and 2 » Electronic Configuration

MCQ▾

Question

The alkali metal used in automotive grease is?

Choices

Choice (4) Response

a.

Lithium

b.

Magnesium

c.

Calcium

d.

Potassium

Question number: 22

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

MCQ▾

Question

What is the formula of bleaching powder?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 23

» 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: 24

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

MCQ▾

Question

What will the product when dry ammonia is passed over sodium at 400 0 C in absence of air?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 25

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

MCQ▾

Question

Mortar is mixture of?

Choices

Choice (4) Response

a.

and

b.

and silica

c.

, water

d.

, silica, water

Question number: 26

» S-Block Elements Group 1 and 2 » Electronic Configuration

MCQ▾

Question

Which of the following alkali metals are used in photoelectric cell?

Choices

Choice (4) Response

a.

Cs and Na

b.

Cs and Rb

c.

K and Cs

d.

Na and Li

Question number: 27

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

MCQ▾

Question

Which of the following alkali metals are most abundant in nature?

Choices

Choice (4) Response

a.

K and Na

b.

Li and Na

c.

Li and K

d.

Cs and Li

Question number: 28

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

MCQ▾

Question

Which one of the following ore is a mineral for magnesium?

Choices

Choice (4) Response

a.

Dolomite

b.

Iceland spar

c.

Carnotite

d.

Barytes

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