Mock Test 3
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Mock Test 3
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25 Questions

1. Plants absorb dissolved nitrates from soil and convert them into
2. Malaria is a disease that affects the
3. The pH of a solution obtained by mixing 50 ml of 0.4 M HCl with 50 ml of 0.2 NaOH is
4. Mammals are
5. Out of the following, the only correct statement about satellites is
6. Ratio of the kinetic energy and rotational energy in the motion of a disc is
7. The solubility of Fe(OH)3 is x mole L'1. Its Ksp would be
8. Choose the correct Synonym – Vestige
9. A car moves for half of its time at 80 kmh'1 and for rest half of time at 40 kmh'1. The total distance covered is 60 km. What is the average speed of the car?
10. Rods and cones of eyes are modified
11. Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The coefficient of friction between the road and tyre is 0.2.
12. The pKa of HCN is 9.30. The pH of a solution prepared by mixing 2.5 moles of KCN and 2.5 moles of HCN in water and making up to total volume to 500 ml is
13. Main substance involved in transfer of electrons in photosynthesis is
14. Norepinephrine increases
15. In an experiment, on the measurement of 'g', using a simple pendulum, the time period was measured with an accuracy of 0.2% while the length was measured with an accuracy of 0.5%. The accuracy in the value of 'g' thus obtained is
16. If the reaction rate at a given temperature becomes slower, then
17. The x and y coordinates of a particle at any time t are given by x = 7t + 4t2 and y = 5t where x and y are in metre and t in seconds. The acceleration of particle at t = 5 s is
18. The solubility of AgI in NaI solution is less than that in pure water because
19. Oxygen in our blood is transported by a protein named
20. Plants receive their nutrients mainly from
21. A particle is to be projected, with a given velocity v, in such a way that its horizontal range becomes equal to the maximum height attained by it. The required angle of projection is
22. Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
23. Man in the life cycle of Plasmodium is
24. The rate constant for the first-order decomposition of a certain reaction is described by the equation log k (s'1) = 14.34______. The energy of activation for this reaction is
25. Plants absorb most of the water needed by them through their