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प्रश्न
What's the solution?
We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.
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उत्तर
We can pound sugar candy into a fine powder. When the powder is fine, it will quickly dissolve in water. Therefore, we can make sherbet quickly.
संबंधित प्रश्न
Name two solid, two liquid and two gaseous elements at the room temperature.
Name a metal which is yellow in colour.
What are the three general classes of matter ? Give one example of each type.
A, B and C are all liquids. Liquid A has a comparatively low boiling point. On heating, liquid A vaporises completely without leaving behind any residue. Liquid A is being used increasingly as a fuel in motor vehicles either alone or by mixing with petrol. Liquid B has a very high boiling point. It also vaporises completely on heating, without leaving any residue. Liquid B is a conductor of electricity and used in making thermometers. Liquid C has a moderate boiling point. On heating, liquid C vaporises leaving behind a white solid D which is used in cooking vegetables. The condensation of vapours from C give a liquid E which turns anhydrous CuSO4 to blue.
(a) Which liquid could be an element ? Name this element.
(b) Which liquid could be a mixture ? Name this mixture.
(c) Which liquid could be a compound ? Name this compound.
(d) What could the solid D be ?
(e) What do you think is liquid E ?
Which of the two will scatter light : soap solution or sugar solution ? Why ?
What is fractional distillation ? What is the use of fractionating column in fractional distillation ?
A solid mixture contains four constituents P, Q, R and S. P consists of tiny grains and it is mixed with
cement for plastering the walls. Q is a white solid which is recovered on a large scale from sea water by the
process of evaporation. R is in the form of tiny particles of a material whose corrosion is called rusting. And
S is a white solid which is used in making ordinary dry cells.
- What could P, Q, R and S be ?
- How would you separate a mixture containing P, Q, R and S ?
Which among the following ______ will get attracted to by magnet?
What type of matter glass is?
Define the term matter.
