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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
पर्याय
sodium chloride
calcium chloride
sodium oxide
hydrogen chloride
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उत्तर
sodium chloride
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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
Is food that we eat a mixture ?
Name: a non-metal which is lustrous
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
What is meant by H20 and 3H2O
Select the correct answer to the statement given below:
A compound containing carbon, oxygen and calcium.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is required for combustion.
How are elements classified?
