EASY
8th ICSE
IMPORTANT
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Symbols were first used by Swedish chemist, John Dalton.

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Important Questions on Language of Chemistry

EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
To study the nature of different chemicals requires knowledge of the fundamental building blocks of all chemicals, the molecule.
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
Chemical reactions always involve the input or release of energy.
EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
The molecular formula of baking soda is Na2CO3.
EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q C
The law of constant proportion is involved in balancing of a chemical equation.
HARD
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q D
What do you mean by a chemical equation? What information is conveyed by it and what are its important limitations?
HARD
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q D
How to write a chemical formula? Explain with some examples.
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q D

Write the chemical formula of Sodium carbonate NaxCOy.

The value of x and y in the formula can be-

A. x = 1, y = 2

B. x = 2, y = 3

C. x = 3, y = 1

"Enter your correct answer as A, B or C."

    

EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Exercise>Q D

Write the chemical formula of Ferric hydroxide Fex(OH)y.

The value of x and y in the formula can be-

A. x = 1, y = 2

B. x = 2, y = 3

C. x = 1, y = 3

"Enter your correct answer as A, B or C."