EASY
7th ICSE
IMPORTANT
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Atomicity of ozone is .

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Important Questions on Atomic Structure

HARD
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>Test Your Understanding>Q 1

Classify the following into acid and basic radicals.

Ammonium, hydroxide, calcium, chloride, sulphate, carbonate, magnesium, oxide, phosphate, nitride, sulphide

HARD
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>Test Your Understanding>Q 2

 Classify the radicals given into monovalent, divalent and trivalent. 

Ammonium, hydroxide, calcium, chloride, sulphate, carbonate, magnesium, oxide, phosphate, nitride, sulphide

MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>Think & Answer>Q 1
What was the need of arrangements of elements in periodic table?
EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>Test Your Understanding>Q 1

Derive the formula of the following compound.

Hydrogen chloride

EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>Test Your Understanding>Q 2
Give the molecular formula of Calcium oxide.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>Test Your Understanding>Q 3

Write the molecular formula of the following:

Calcium chloride

MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>Test Your Understanding>Q 4

Write down the formula for the following compound:

Zinc chloride

MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Chemistry>Chapter 4 - Atomic Structure>EXERCISES>Q 1
The atomicities of ozone, sulphur, phosphorus and argon are respectively: