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प्रश्न
Fill in the blank
A ________ substance has only one kind of matter.
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उत्तर
A pure substance has only one kind of matter.
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संबंधित प्रश्न
Fill in the blank
Mixtures can be ...................... or .....................
A _______ is formed when one liquid is dispersed as tiny droplets throughout another liquid
Write true or false
Milk is an emulsion.
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Chalk powder from water
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Calcium carbonate and sodium chloride
State any one method – to separate the following mixtures – Two solid mixtures one of which – directly changes into vapour on heating.
State any one method – to separate the following mixtures – A solid-liquid mixture containing – a soluble solids in the liquid component
State any one method – to separate the following mixtures – A liquid-gas mixture containing – a gas dissolved in a liquid component.
Explain with a diagram the process used to – separate the following substance from the given mixture.
Potassium nitrate from a mixture of – potassium nitrate & potassium chlorate.
You are provided with a mixture of salt, sand, oil and water. Write the steps involved for the separation of salt, sand and oil from the mixture by giving an activity along with the diagram.
