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प्रश्न
Name the following:
The heavier liquid component from mercury and water.
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उत्तर
Mercury
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संबंधित प्रश्न
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Baking Soda
Name the following:
The non-sublimable solid from a mixture of iodine and potassium nitrate.
State any one method – to separate the following mixtures – Two solid mixtures one of which – directly changes into vapour on heating.
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.
Give a reason for the following statement :
Components in a mixture can be separated by physical methods only.
Give a reason for the following statement :
Zinc is considered an element, while zinc sulphide is considered a compound.
How would you obtain clear water from a sample of muddy water?
What is meant by separation?
Paheli asked for a glass of water from Boojho. He gave her a glass of ice cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho how these droplets of water were formed. Which of the following should be Boojho’s answer?
Match the mixtures in column I with their method of separation in column II.
| COLUMN I | COLUMN II | ||
| (a) | Oil mixed in water | (i) | Sieving |
| (b) | Iron powder mixed with flour | (ii) | Hand picking |
| (c) | Salt mixed with water | (iii) | Decantation |
| (d) | Lady’s finger mixed with french beans | (iv) | Magnet |
| (e) | Rice flour mixed with kidney beans | (v) | Evaporation |
