chem9 chap2 part3

chem9 chap2 part3

separation of mixtures

Multiple Choice

is compound and mixture are ?

• same

• different

• light chali gayi

• cycle puncher ho gai

mixtures can be separated physically

Multiple Choice

compounds can be separated by

• heat

• light

• electric current

• all are correct

Multiple Choice

name the method shown in the image , this process is followed by decantation

• Filtration

• Separating funnel

• sublimation

Multiple Choice

for what the method can also be used for

• separating volatile from its solution

• separating salt from sugar solution

• separating tea from container

• faltu me heat waste

Multiple Choice

centrifugation uses rotation at high speed and

• density

• heat

• money

Multiple Choice

sublimation is process of separating

• water from milk

• tea from tea pot

• mixture of one sublime

  and other substance

Multiple Choice

Chromatography is a method of separating

• ram ne rawan ko mara to vastav me kon mra tha

• components of different types of solubility

• the discovery of fire

• i m not a robot

Multiple Select

distillation is process of separating volatile substance of

• distil water for battery

• high concentration to low concentration

• different boiling point

Multiple Choice

crystallization

• separates a pure solid in the form of its crystals from a solution

• separation of oxygen, liquid nitrogen and argon from air.

• separation which works on the principle of travel speed of components of a mixture

Multiple Choice

PHYSICAL CHANGE

• The change in which no new substance is formed

• The change in which a new substance is formed

Multiple Choice

Substances that is made of only one element

• Compounds

• Elements

Summary

Multiple Choice

Wheat grains from husk

• filteration

• Winnowing

Multiple Choice

Sodium chloride from its solution in water

• Evaporation

• Decantation

• sublimation

• respiration

Multiple Choice

Oil from water

• evaporation

• separating funnel