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प्रश्न
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
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उत्तर
(i) Chlorine – greenish-yellow
(ii) Nitrogen dioxide – reddish brown.
संबंधित प्रश्न
Name: a Liquid Non-metal
Define: Formula
Name: A form of carbon used as a gem
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
Give the name of the radical - SO4
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
State five different characteristics of compounds.
Oxygen is very essential for us to live. It forms 21% of air by volume. Is it an element or compound?
______ is the life-giving element is the air.
