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प्रश्न
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
पर्याय
True
False
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उत्तर
False
Correct Statement: the compound is made up of two or more elements is a fixed proportion by mass.
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संबंधित प्रश्न
Why is it necessary to separate the constituents of a mixture.
Give two examples of Noble gases.
Give two examples of the following.
Non-metals which are solids
Find the atomicity of the Following molecule:
Aluminium Suiphide
Match the Columns:
| Column A | Column B | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
Indicate whether the following statement is true or false:
Elements are made up of compounds
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
Complete the statement given below by filling in the blank with the correct word.
From the elements nitrogen, chlorine, bromine, the element present in the atmosphere is ________.
Select the correct answer from the choice in the bracket.
The least reactive metal.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
