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प्रश्न
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
उत्तर
A gas with a pungent, choking odour which is lighter than air is Ammonia
संबंधित प्रश्न
Give Two Examples for Each of the Following: Inert Gases
Give one use of the following substance:
Brass
Fill in the blank
A liquid non-metal is _______.
Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements
Classify substances into pure and impure substances in the form of a chart or tabulation.
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
Select the correct answer from the choice in the bracket.
The least reactive metal.
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
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.
