BSSC Inter Level · General Science
Atoms, molecules, elements, compounds and mixtures.
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Q1 · Matter and its Nature · EASY
Which of the following is an element?
Q2 · Matter and its Nature · EASY
A mixture of sand and water can be separated by which method?
Q3 · Matter and its Nature · MEDIUM
What is the atomicity of ozone (O3)?
Q4 · Matter and its Nature · MEDIUM
A solution contains 20 g of common salt dissolved in 80 g of water. What is the mass percentage of salt in this solution?
Q5 · Matter and its Nature · MEDIUM
Which of the following processes involves both physical and chemical changes?