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Question
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
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Solution
RELATED QUESTIONS
Why is it necessary to separate the constituents of a mixture.
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Give reason: A frying pan is made up of steel but its handle is made up of wood.
Give the name of the radical - NO3
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
Explain the term ‘mixture’.
Differentiate between homogenous & heterogeneous mixtures.
State why brass is considered as a homogenous mixture while a mixture of iron & sulphur – heterogenous.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
Higher-Order Thinking questions:
Why is hydrogen considered an element?
