Advertisements
Advertisements
प्रश्न
Define the following:
Pure substance
Advertisements
उत्तर
Pure substance: “Pure Substance is either element or compound. It contains the same kind of atom or molecules and has a definite set of physical and chemical properties.”
APPEARS IN
संबंधित प्रश्न
Which method can be used to separate a mixture of naphthalene and common salt ?
Name any two solid substances whose mixture can be separated by sublimation.
How will you separate a mixture of chalk powder and water?
Give two examples of the following type of mixture.
solid-solid
Write “true” or “false” for the following statement
Jewellery gold is a homogeneous mixture of metals.
Give an example of mixtures of two compounds
Give a reason for the following statement:
Gunpowder is an example of a heterogenous mixture.
Suggest separation technique(s) one would need to employ to separate the following mixture.
Common salt, water and sand
You are provided with a mixture containing sand, iron filings, ammonium chloride and sodium chloride. Describe the procedures you would use to separate these constituents from the mixture?
Expand LPG ______.
