Question

Biology class 9 chp 6 mcqs

Answer 1

Answer:

1. What is the name of the metal which exists in liquid state at room temperature?

(a) Sodium

(b) Potassium

(c) Mercury

(d) Bromine

Which of the following elements is not a metalloid?

(a) Boron

(b) Silicon

(c) Germanium

(d) Tungsten

If we put camphor in an open container, its amount keeps on decreasing due to the phenomenon of

(a) Evaporation

(b) Precipitation

(c) Condensation

(d) Sublimation

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:

a) Colloidal solution

(b) Super saturated solution

(c) Sublimation

(d) Suspension

. In tincture of iodine, find the solute and solvent?

(a) alcohol is the solute and iodine is the solvent

(b) iodine is the solute and alcohol is the solvent

(c) any component can be considered as solute or solvent

(d) tincture of iodine is not a solution