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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
All pure substances have
पर्याय
the same physical state
the same colour
the same composition
a definite set of properties
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उत्तर
a definite set of properties
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संबंधित प्रश्न
Why is it necessary to separate the constituents of a mixture.
State four differences between compounds and mixtures.
Define:
Atomicity
Fill in the blank
The most abundant element in the earth’s crust is _______.
Indicate whether the following statement is true or false:
Elements are made up of compounds
Tick (√) the correct alternative from the choice given for the following statement
A gaseous non-metal.
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
Complete the statement given below by filling in the blank with the correct word.
The basic unit of an element is an __________.
Matter is its simplest form is called ______.
Name the two elements which are derived from the country.
