WorksheetsIs Matter Around Us Pure?|Grade 9th|Kids Academy
Total questions: 7
Worksheet time: 4mins
What is the name of the metal which exists in liquid state at room temperature?
Sodium
Potassium
Mercury
Bromine
When the liquid is spun rapidly, the denser particles are forced to the bottom and the lighter particles stay at the top. This principle is used in:
Centrifugation
Fractional distillation
Evaporation
Tunneling
Condensation
What is the name of the metal which exists in liquid state at room temperature?
Mercury
Bromine
Potassium
Sodium
Which of the following elements is not a metalloid?
Boron
Tungsten
Germanium
Silicon
If we put camphor in an open container, its amount keeps on decreasing due to the phenomenon of
(a)
Heterogeneous mixture in which the solute particles do not dissolve and remain suspended throughout the solvent and the solute particles can be seen with the naked eye is known as:
Colloidal solution
Super saturated solution
Sublimation
Suspensions
In tincture of iodine, find the solute and solvent?
alcohol is the solute and iodine is the solvent
iodine is the solute and alcohol is the solvent
any component can be considered as solute or solvent
tincture of iodine is not a solution
