S-Block Elements Group 1 and 2-Electronic Configuration (NEET Chemistry): Questions 1 - 6 of 6

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Question number: 1

» 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: 2

» 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: 3

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

MCQ▾

Question

Sodium is heated in air at 350 0 C to form X, X absorbs CO 2 and forms sodium carbonate and Y. Which of these following is Y. ?

Choices

Choice (4) Response
a.

O2

b.

H2

c.

O 3

d.

H2O2

Question number: 4

» 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: 5

» 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: 6

» 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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