MCQ Is Matter Around Us Pure? | NCERT Class 9

#1. Two chemical species X & Y combine together to form a product P which contains both X & Y. X & Y can not be broken into simpler substances by simple chemical reactions. Which are correct - a) P is a compound, b) X & Y are compounds, c) X & Y are elements, d) P has a fixed composition?

a, b, c

a, b, d

b, c, d

a, c, d

#2. On many medicine bottle it is written 'shake well before use'. Can you tell what type of mixture the bottle is containing?

a) pure solution

b) unsaturated solution

c) colloid

d) suspension

#3. Tincture of iodine is made by dissolving

a) iodine in alcohol

b) iodine in water

c) iodine in vaseline

d) iodine in potassium iodide

#4. Solution of NaCl in water & solution of starch in water are tested for Tyndall effect with the help of a torch. The result obtained is

a) Solution of NaCl shows Tyndall effect

b) Solution of starch shows Tyndall effect

c) Both the solution show Tyndall effect

d) None of the solution show Tyndall effect

#5. Select the option where both are homogeneous - a) Air, b) Ice, c) Wood, d) Soil?

a) & b)

b) & c)

c) & d)

d) & a)

#6. Two substances A & B react & form a third substance - 2A + B = A₂B. Which statements are false in this case - a. A₂B shows the properties of A & B, b. A₂B always has a fixed composition, c. A₂B cannot be classifies as compound, d. A₂B is an element ?

a, b, c

b, c, d

a, c, d

b, c, d

#7. Which statements are true for pure substance - a. Pure substances contain only one kind of particles, b. Pure substances may be compounds or mixtures, c. Pure substances have the same composition throughout, d. Pure substances can be exemplified by all elements other than nickel ?

a & b

a & c

c & d

b & c

#8. Which are examples of physical changes - a. melting of iron metal, b. rusting of iron, c. bending of an iron rod, d. drawing a wire of iron metal ?

a, b, c

a, b, d

a, c, d

b, c, d

#9. A mixture of sulphur & carbon disulphate is

a) heterogeneous & shows Tyndall effect

b) homogeneous & shows Tyndall effect

c) heterogeneous & does not show Tyndall effect

d) homogeneous & does not show Tyndall effect

#10. Arun has prepared 0.01% (by mass) solution of sodium chloride in water. Which of the following correctly represents the composition of the solutions?

a) 1.00 g NaCl + 100 g Water

b) 0.11 g NaCl + 100 g Water

c) 0.01 g NaCl + 99.99 g Water

d) 0.10 g NaCl + 99.90 g Water

#11. Which is a homogeneous mixture

a) Wood

b) Air

c) Soda water

d) Soil

#12. Rusting of an article made up of iron is called

a) corrosion & it is a physical as well as chemical change

b) dissolution & it is a physical change

c) corrosion & it is a chemical change

d) dissolution & it is a chemical change

#13. Which are chemical changes - a) decaying of wood, b) burning of wood, c) sawing of wood, d) hammering of a nail into a piece of wood?

a) & b)

b) & c)

c) & d)

a) & d)

#14. For separating cream from milk which of the following technique will be used

a) centrifugation

b) evaporation

c) chromatography

d) none

Finish

Results

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MCQ & Online Test – Is Matter Around Us Pure? – NCERT Class 9 Science Chapter 2

Online Test | MCQ Is Matter Around Us Pure? | NCERT Class 9 Science Chapter 2 | CBSE Syllabus

#1. Two chemical species X & Y combine together to form a product P which contains both X & Y. X & Y can not be broken into simpler substances by simple chemical reactions. Which are correct - a) P is a compound, b) X & Y are compounds, c) X & Y are elements, d) P has a fixed composition?

#2. On many medicine bottle it is written 'shake well before use'. Can you tell what type of mixture the bottle is containing?

#3. Tincture of iodine is made by dissolving

#4. Solution of NaCl in water & solution of starch in water are tested for Tyndall effect with the help of a torch. The result obtained is

#5. Select the option where both are homogeneous - a) Air, b) Ice, c) Wood, d) Soil?

#6. Two substances A & B react & form a third substance - 2A + B = A₂B. Which statements are false in this case - a. A₂B shows the properties of A & B, b. A₂B always has a fixed composition, c. A₂B cannot be classifies as compound, d. A₂B is an element ?

#7. Which statements are true for pure substance - a. Pure substances contain only one kind of particles, b. Pure substances may be compounds or mixtures, c. Pure substances have the same composition throughout, d. Pure substances can be exemplified by all elements other than nickel ?

#8. Which are examples of physical changes - a. melting of iron metal, b. rusting of iron, c. bending of an iron rod, d. drawing a wire of iron metal ?

#9. A mixture of sulphur & carbon disulphate is

#10. Arun has prepared 0.01% (by mass) solution of sodium chloride in water. Which of the following correctly represents the composition of the solutions?

#11. Which is a homogeneous mixture

#12. Rusting of an article made up of iron is called

#13. Which are chemical changes - a) decaying of wood, b) burning of wood, c) sawing of wood, d) hammering of a nail into a piece of wood?

#14. For separating cream from milk which of the following technique will be used

Results

Online Test | MCQ Is Matter Around Us Pure? | NCERT Class 9 Science Chapter 2 | CBSE Syllabus

#1. Two chemical species X & Y combine together to form a product P which contains both X & Y. X & Y can not be broken into simpler substances by simple chemical reactions. Which are correct - a) P is a compound, b) X & Y are compounds, c) X & Y are elements, d) P has a fixed composition?

#2. On many medicine bottle it is written 'shake well before use'. Can you tell what type of mixture the bottle is containing?

#3. Tincture of iodine is made by dissolving

#4. Solution of NaCl in water & solution of starch in water are tested for Tyndall effect with the help of a torch. The result obtained is

#5. Select the option where both are homogeneous - a) Air, b) Ice, c) Wood, d) Soil?

#6. Two substances A & B react & form a third substance - 2A + B = A2B. Which statements are false in this case - a. A2B shows the properties of A & B, b. A2B always has a fixed composition, c. A2B cannot be classifies as compound, d. A2B is an element ?

#7. Which statements are true for pure substance - a. Pure substances contain only one kind of particles, b. Pure substances may be compounds or mixtures, c. Pure substances have the same composition throughout, d. Pure substances can be exemplified by all elements other than nickel ?

#8. Which are examples of physical changes - a. melting of iron metal, b. rusting of iron, c. bending of an iron rod, d. drawing a wire of iron metal ?

#9. A mixture of sulphur & carbon disulphate is

#10. Arun has prepared 0.01% (by mass) solution of sodium chloride in water. Which of the following correctly represents the composition of the solutions?

#11. Which is a homogeneous mixture

#12. Rusting of an article made up of iron is called

#13. Which are chemical changes - a) decaying of wood, b) burning of wood, c) sawing of wood, d) hammering of a nail into a piece of wood?

#14. For separating cream from milk which of the following technique will be used

Results

#6. Two substances A & B react & form a third substance - 2A + B = A₂B. Which statements are false in this case - a. A₂B shows the properties of A & B, b. A₂B always has a fixed composition, c. A₂B cannot be classifies as compound, d. A₂B is an element ?