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प्रश्न
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
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उत्तर
A poisonous gas almost as heavy as air is Carbon monoxide
संबंधित प्रश्न
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Name: an Inert Gas
State the number of atoms of C6H12O6
Find the atomicity of the Following molecule:
Acetic Acid
Fill in the blank
The most abundant element in the atmosphere is _______.
Fill in the blank
A liquid non-metal is _______.
Complete the statement with the correct words.
__________ are chemicals formed on reaction of a base with an _____ giving salt and water.
Differentiate between homogenous & heterogeneous mixtures.
Elements are the______ form of pure substances.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
