NEET Chemistry: Questions 141 - 147 of 677

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Question number: 141

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

MCQ▾

Question

Why BaSO 4 is insoluble where as BeSO 4 is soluble in water?

Choices

Choice (4) Response
a.

Hydration energy of BaSO 4 is more than its lattice energy

b.

Hydration energy of BeSO 4 is less than its lattice energy

c.

Hydration energy of BaSO 4 is equal to lattice energy

d.

Hydration energy of BaSO 4 is less than its lattice energy

Question number: 142

» S-Block Elements Group 1 and 2 » Biological Significance of Na, K, Mg and Ca

MCQ▾

Question

Which of the following magnesium compound is used as antacid in medicine?

Choices

Choice (4) Response
a.

MgCl2

b.

MgSO4

c.

Mg(OH)2

d.

MgCO3

Question number: 143

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

MCQ▾

Question

Which of the following process is used for preparation of Pearl ash?

Choices

Choice (4) Response
a.

Le-Blancs process

b.

Nelson process

c.

Electrolytic process

d.

Lowig’s process

Question number: 144

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

MCQ▾

Question

How many electrons will be there in penultimate shell of potassium?

Choices

Choice (4) Response
a.

3 electrons

b.

8 electrons

c.

6 electrons

d.

1 electron

Question number: 145

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

MCQ▾

Question

The substance not likely to contain CaCO 3?

Choices

Choice (4) Response
a.

Marble statue

b.

Seashell

c.

Dolomite

d.

Calcined gypsum

Question number: 146

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

MCQ▾

Question

A substance which gives a brick red flame and breaks down on heating giving oxygen and a brown gas is?

Choices

Choice (4) Response
a.

Magnesium nitrite

b.

Calcium carbonate

c.

Calcium nitrite

d.

Magnesium carbonate

Question number: 147

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

MCQ▾

Question

Identify the correct statement?

Choices

Choice (4) Response
a.

Gypsum is not a natural product. It is obtained by heating of plaster of Paris.

b.

The percentage of calcium is lower in gypsum in comparison to plaster of Paris.

c.

Plaster of Paris is obtained by hydration of gypsum.

d.

Plaster of Paris is formed by oxidation of gypsum.

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