Chemistry, asked by rathorersr, 9 months ago

can anyone please give me some good mcq types for class 9 is matter around us pure chapter please I really need it​

Answers

Answered by anshuman2008
7

Answer:

Question 1. Air is regarded as a mixture because:

a)Its pressure may very

b)Its temperature may change

c)Its volume changes under different conditions

d)Its composition may vary

Question 2 .Which of the following is a compound?

a)Stainless steel

b)Bronze

c)Graphite

d)Hydrogen sulphide

Question 3..The process used to separate oil and water is:

a)Distillation

b)Sublimation

c)Separating funel

d)chromatography

Question 4.In which of the following the constituents are present in any ratio?

a)Mixture

b)Compound

c)Solution

d)Colloid

Question 5.A mixture of common salt, sulphur, sand and iron filings is shaken with carbon disulphide and filtered through a filter paper. The filtrate is evaporated to dryness in a china dish. What will be left in the dish after evaporation?

a)Sand

b)Sulphur

c)Iron filings

d)Common salt

Question 6. Two substances A and B when bought together form a substance C with the evolution of heat. The properties of C are entirely different from those of A and B. the substance C is:

a)A compound

b)An element

c)A mixture

d)None of the above

Question 7.Camphor can be purified by:

a)Distillation

b)Filtration

c)Sedimentation

d)Sublimation

Question 8.Which one of the following will result in the formation of a mixture?

a)Crushing of a marble tile into small particles

b)Breaking of ice cubes into small pieces

c)Adding sodium metal to water

d)Adding milk in water

Question 9.Purity of a solid substance can be checked by its:

a)Boiling point

b)Melting point

c)Solubility in water

d)Solubility in alcohol

Question 10.A mixture of ethanol and water ca be separated by:

a)Filtration

b)Decantation

c)Fractional distillation

d)Sublimation

Question 11.Salt can be obtained from sea water by:

a)Filtration

b)Decantation

c)Evaporation

d)Sublimation

Question 12.A sample contains two substances and has uniform properties. The sample is:

a)A compound

b)A heterogeneous mixture

c)An element

d)A homogeeous mixture

Answered by harshita798
7

Answer:

there have 3 state matter is solid, liquid,gas

there have any where

solid ex - ice,chair table or anything

liquid ex - water, juice, shampoo,etc

and gas ex - air, oxygen, pollution etc

this is the example of matter

hope you it help if you like my answer mark me brilliant ok plz

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