What are halogens?

Important Questions on Periodic Classification of Elements

EASY

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 14

Why are group $17$ elements called as halogens?

EASY

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 14

To which group do halogens belong to?

EASY

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 15

What are noble gases?

EASY

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 15

To which group does noble gases belong to?

EASY

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 15

What is the speciality of the outermost shells of noble gases?

MEDIUM

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 16

Give reason:
Potassium is more reactive than sodium.

MEDIUM

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 16

Give reason:

Chlorine is more reactive than bromine.

EASY

10th CBSE

IMPORTANT

Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 16

Give reason:
Sodium and potassium are called alkali metals.