MEDIUM
9th CBSE
IMPORTANT
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Which of the following are homogeneous in nature?
(i) lce
(ii) Wood
(iii) Soil
(iv) Air

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Important Questions on Is Matter Around Us Pure?

MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 2 - Is Matter Around Us Pure?>Multiple Choice Questions>Q 6
Which of the following are physical changes?
(i) Melting of iron metal
(ii) Rusting of iron
(iii) Bending of an iron rod:
(iv) Drawing a wire of iron metal
MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 2 - Is Matter Around Us Pure?>Multiple Choice Questions>Q 7
Which of the following are chemical changes?
(i) Decaying of wood
(ii) Burning of wood
(iii) Sawing of wood
(iv) Hammering of a nail into a piece of wood
EASY
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 2 - Is Matter Around Us Pure?>Multiple Choice Questions>Q 8
Two substances, A and B were made to react to form a third substance, A2B according to the following reaction: 2A+B→A2B
Which of the following statements concerning this reaction are incorrect?
(i) The product A2B shows the properties of substances A and B.
(ii) The product will always have a fixed composition.
(iii) The product so formed cannot be classified as a compound.
(iv) The product so formed is an element.
MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 2 - Is Matter Around Us Pure?>Multiple Choice Questions>Q 9
Two chemical species X and Y combine together to form a product P which contains both X and Y
X+Y→P 
X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following concerning the species X, Y and P are correct?
(i) P is a compound
(ii) X and Y are compounds
(iii) X and Y are elements
(iv) P has a fixed composition
EASY
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 2 - Is Matter Around Us Pure?>Short Answer Questions>Q 10
Suggest separation technique(s) one would need to employ to separate Mercury and water.
MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 2 - Is Matter Around Us Pure?>Short Answer Questions>Q 10
Suggest separation technique(s) one would need to employ to separate potassium chloride and ammonium chloride.
MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 2 - Is Matter Around Us Pure?>Short Answer Questions>Q 10
Suggest separation technique(s) one would need to employ to separate common salt, water and sand.
MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 2 - Is Matter Around Us Pure?>Short Answer Questions>Q 10
Suggest separation technique one would need to employ to separate Kerosene oil, water and salt.