Class IX Science Term 1 MCQs (2021-22)
Q1. Rusting of an article made up of iron is called
(a) corrosion and it is a physical as well as chemical change
(b) dissolution and it is a physical change
(c) corrosion and it is a chemical change
(d) dissolution and it is a chemical change
Q2. Which of the following are homogeneous in nature?
(i) ice (ii) wood (iii) soil (iv) air
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (iv)
(d) (iii) and (iv)
Q3: In a water-sugar solution
(a) water is solute and sugar is solvent
(b) water is solvent and sugar is solute
(c) water is solute and water is also solvent
(d) none of these
Q4: Two substances, A and B were made to react to reaction a third substance, A₂B according to the following
2 A + 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
(a) (i), (ii) and (iii)
(b) (ii), (iii) and (iv)
(c) (i), (iii) and (iv)
(d) (ii), (iii) and (iv)
Q5. Nanometer is an
(a) Instrument used for measuring micro-distance
(b) Instrument used for measuring macro-distance
(c) Unit for measuring micro-distance
(d) Unit for measuring macro-distance.
Q6. The process of conversion of a substance from the liquid state to the gaseous state at any temperature below its boiling point is called _______.
(a) evaporation
(b) tyndall effect
(c) diffusion
(d) condensation
Q7: Blood and sea water are
(a) both are mixtures
(b) both are compounds
(c) blood is a mixture whereas sea water is a compound
(d) blood is a compound and sea water is a mixture
Q8: When liquid starts boiling, further heat is supplied, which is :
(a) absorbed as latent heat of vaporization by the liquid
(b) lost to surrounding
(c) absorbed to increase the temperature
(d) absorbed to convert the liquid into solid
Q9: Chromosomes are made up of
(a) DNA
(b) Protein
(c) DNA and protein
(d) RNA
Q10: Which of these is not related to endoplasmic reticulum?
(a) It behaves as a transport channel for proteins between nucleus and cytoplasm.
(b) It transports materials between various regions in the cytoplasm.
(c) It can be the site of energy generation.
(d) It can be the site for some biochemical activities of the cell
Q11: Which of the following are covered by a single membrane?
(a) Mitochondria
(b) Vacuole
(c) Lysosome
(d) Plastid
Q12: Rohan examined the onion peel and made observations. The incorrect observation is:
(a) Intercellular space is absent
(b) Cytoplasm and cell wall is present
(c) Nucleus is present
(d) Cell wall is absent
Q13: Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 m/s It implies that the boy is
(a) at rest
(b) moving with no acceleration
(c) in accelerated motion
(d) moving with uniform velocity
Q14: An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table. The force required to keep the object moving with the same velocity is
(a) 32 N
(b) 0 N
(c) 2 N
(d) 8 N
Q15: A ball is thrown vertically upward in a train moving with uniform velocity. The ball will
(a) fall behind the thrower
(b) fall ahead of the thrower
(c) return back to the thrower
(d) fall on the left of the thrower
Answers:
1: (c) corrosion and it is a chemical change
2: (c) (i) and (iv)
3: (b) water is solvent and sugar is solute
4: (c) (i), (iii) and (iv)
5: (c) Unit for measuring micro-distance
6: (a) evaporation
7: (a) both are mixtures
8: (a) absorbed as latent heat of vaporization by the liquid
9: (c) DNA and protein
10: (c) It can be the site of energy generation.
11: (b) Vacuole
12: (d) Cell wall is absent
13: (c) in accelerated motion
14: (b) 0 N
15: (c) return back to the thrower
👉See Also:
Ch1 - Matter in Our Surroundings (MCQs-1)
Ch 2 - Is Matter Around Us Pure (MCQs)
Ch5 - Fundamental Unit of Life (MCQs)
Ch9 - Force and Laws of Motion (MCQs)
CBSE Class 9 - Science - MCQs asked in SA-1 Examination
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