Chemistry - Questions and Answers, General Study (GK)

Home » General Study » Chemistry - Questions and Answers Objective Questions

Chemistry - Questions and AnswersPage 6

51.

Soap cannot be used un acidic condition because they lose their cleansing effect due to formation of insoluble

(a)esters

(b)alcohols

(c)hydrocarbon

(d)long chain fatty acids

Comment

Answer is: DNA

52.

An emulsion is a colloid of a

(a)gas in a liquid

(b)liquid in a liquid

(c)liquid in a gas

(d)gas in a solid

Comment

Answer is: BNA

53.

A syringe is a hollow glass tube with lower end tapered to a nozzle. Due to whichone of the following liquid can be drawn into a syringe?

(a)partial vacuum produced inside the glass tube

(b)Diffusion

(c)Surface tension effect

(d)Capillary action

Comment

Answer is: CNA

54.

Fog is an example of

(a)gas dispersed in gas

(b)liquid dispersed in gas

(c)solid dispersed in gas

(d)solid dispersed in liquid

Comment

Answer is: BNA

55.

Which one of the following is not the result of surface tension?

(a)Vapour formation above the liquid surface

(b)Convex shape of liquid meniscus

(c)Liquid rising in a capillary

(d)Spherical shape of mercury fallen on the floor

Comment

Answer is: BNA

56.

When blood cells are placed in a solution of KCL whose osmotic pressure is greater than that of the cell fluid there occurs

(a)shrinking in size of the cell

(b)increase in size if the cell

(c)no change in size

(d)first shrinking and then regaining of original size

Comment

Answer is: ANA

57.

When oil floats in water, the surface tension of water

(a)vanishes immediately

(b)decreases considerably

(c)increases considerably

(d)remains unaffected

Comment

Answer is: BNA

58.

Which one among the following has been producing /can produce light by a chemical change?

(a)Sun

(b)Moon

(c)Electric bulb

(d)Lightning and thunder

Comment

Answer is: ANA

59.

Which one of the following is not a chemical change?

(a)Burning of coil in air

(b)Fermentation

(c)Crystallization of table salt from sea water

(d)Cracking of petroleum

Comment

Answer is: CNA

60.

Which one of the following is a chemical process?

(a)Distillation of sea water

(b)Crystallization of impure salt (NaCl)

(c)production of iodine from sea weeds

(d)Sublimation of iodine

Comment

Answer is: CNA

Comments

No comment yet.

Chemistry - Questions and AnswersPage 6

Comments

Similar GS Topics

Top 10 List

Miscellaneous

Follow us on YouTube

Links

Social links

For Coaching Class/Schools

Subscribe for updates