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प्रश्न
Write the names of elements from the following symbol:
Si
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उत्तर
Si- Silicon
संबंधित प्रश्न
Tick the most appropriate answer.
The constituents of a mixture are present in
- a fixed ratio
- a variable ratio,
- the ratio of 2: 1
- none of these
State four differences between compounds and mixtures.
Name: a non-metal which is lustrous
Give two examples of the following.
Metals which are soft
Give reason: Argon is filled in electric bulbs.
Fill in the blank
A metal which is a poor conductor of electricity is _______.
Select the correct answer from the choice in the bracket.
The least reactive metal.
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
Higher-Order Thinking questions:
Why is hydrogen considered an element?
