Practice FORMULAE OF SIMPLE COMPOUNDS - 3.4.1 | 3. Atoms and Molecules | CBSE 9 Science
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FORMULAE OF SIMPLE COMPOUNDS

3.4.1 - FORMULAE OF SIMPLE COMPOUNDS

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the chemical formula for hydrogen chloride?

💡 Hint: Think about the valencies of hydrogen and chlorine.

Question 2 Easy

What are the constituent elements of water?

💡 Hint: Recall the chemical formula of water.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a binary compound?

A compound with more than two elements
A compound with two different elements
A pure element

💡 Hint: Think about the definition of 'binary'.

Question 2

True or False: The valency of oxygen is 1.

True
False

💡 Hint: Recall how many bonds oxygen can form.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Write the chemical formula for a compound containing two calcium ions and one carbonate ion.

💡 Hint: Consider the valency of calcium and carbonate.

Challenge 2 Hard

Calculate the molecular mass of aluminum oxide (Al2O3).

💡 Hint: Add the atomic masses of all atoms in the formula.

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Reference links

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