2025 · Level 1
Evening
Group D LEVEL 1 Previous Year Question 28/11/2025 Shift 3 Shift Common
100 questions
120 min
100.0 marks
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1
Part A
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When solid lead(II) nitrate is heated, a yellow residue (PbO) is left behind and two gases are evolved — one is reddish-brown and the other supports combustion. Which gases are evolved?
2
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As Newton is to weight, _____________ is to pressure.
3
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In Mendel’s experiment, what did he observe in the F1 generation when he crossed a tall (TT) and a short pea (tt) plant?
4
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A fluid filled in a container exerts pressure _______ at the same height.
5
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Which of the following metals reacts most vigorously with water?
6
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Work done by a force is said to be positive when:
7
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How is molecular mass calculated?
8
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Colloidal particles are separated by:
9
Part A
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Which of the following statements are NOT true regarding the principal axis of a spherical mirror?
(i) It is an imaginary straight line passing through the pole and the centre of curvature of a spherical mirror. (ii) Principal axis is normal to the mirror at its pole. (iii) A ray parallel to the principal axis after reflection from the mirror passes through the centre of curvature of the mirror. (iv) The focus of a spherical mirror does not lie on its principal axis.
(i) It is an imaginary straight line passing through the pole and the centre of curvature of a spherical mirror. (ii) Principal axis is normal to the mirror at its pole. (iii) A ray parallel to the principal axis after reflection from the mirror passes through the centre of curvature of the mirror. (iv) The focus of a spherical mirror does not lie on its principal axis.
10
Part A
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How does the sound of a patient's heartbeat travel from the chest piece to the doctor's ear through a stethoscope?