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प्रश्न
Select the correct answer to the statement given below:
A compound containing carbon, oxygen and calcium.
विकल्प
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
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उत्तर
Chalk
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संबंधित प्रश्न
Give Two Examples for Each of the Following: Metalloids
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Also name the compound.
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Brass
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Why are copper and aluminium used to make electric wires?
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| Column A | Column B | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
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Metals can be polished.
Tick (√) the correct alternative from the choice given for the following statement
The most ductile metal.
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The positively charged particle of an atom.
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
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- Can two immiscible liquids be separated by this process?
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- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
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Higher-Order Thinking questions:
Why is hydrogen considered an element?
