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प्रश्न
Give reason: Argon is filled in electric bulbs.
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उत्तर
Argon is an inert gas and protects the element of bulb from oxidation and burning. Hence increases bulb’s life.
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संबंधित प्रश्न
Classify the following substances into compounds and mixtures:
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
Define the term: Element
Name: the Hardest Naturally Occurring Substance
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Find the atomicity of the Following molecule:
Aluminium Suiphide
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
Tick (√) the correct alternative from the choice given for the following statement.
Sand is a compound of
Write the names of elements from the following symbol:
Cd
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
