General Science Set 16 FAQs

1. Because of atmospheric refraction, the Sun is visible about ___ before the actual sunrise.

2. Consider the following pairs: (I) Tendon – Connects muscle to bone (II) Ligament – Connects bone to bone (III) Cartilage – Connects muscle to bone Which of the pairs given above is/are correctly matched?

3. Covalent compounds are generally poor conductors of electricity because:

4. Consider the following pairs: (I) Kilogram – Planck constant (II) Kelvin – Boltzmann constant (III) Mole – Elementary charge Which of the pairs given above is/are correctly matched?

5. The enzyme in saliva that breaks down starch into simple sugar is:

6. Which compound is used in soda-acid fire extinguishers?

7. The energy stored by an object due to its deformation, or in a system of objects due to their relative positions, is called:

8. Robert Hooke observed the first cells in a thin slice of:

9. The metal cap of an electric cell is its:

10. Which of the following allotropes of carbon is smooth and slippery?

11. Persons of which blood group are called universal donors?

12. The father of the Indian nuclear programme is:

13. Which of the following seeds requires light to germinate?

14. Consider the following statements: (I) Salts of a strong acid and a strong base are neutral with pH 7. (II) Salts of a strong acid and a weak base are acidic with pH less than 7. (III) Salts of a strong base and a weak acid are acidic in nature. Which of the above is/are correct?

15. A block of mass m is attached to two identical springs of spring constant k on either side, fixed to rigid supports. The time period of its oscillations is:

16. The Indian botanist who played a key role in the 'Save Silent Valley' movement and headed the Botanical Survey of India was:

17. The catalyst used in the hydrogenation of vegetable oils is:

18. The base units of length, mass and time in the FPS system are respectively:

19. Consider the following statements: (I) Mars lies at the edge of the Sun's habitable zone. (II) Mercury has a thin atmosphere about 100 times thinner than Earth's. (III) The atmosphere of Mars is about 100 times thinner than that of Earth. Which of the above is/are correct?

20. A body cools from 90 °C to 80 °C in 5 min when the surroundings are at 30 °C. The time taken to cool from 60 °C to 50 °C is:

21. A metal oxide reacts with an acid to give:

22. Segmented bodies with a body cavity and organ system level organisation are seen in:

23. In steady-state conduction through a bar, the rate of heat flow is inversely proportional to the:

24. An aquatic plant pollinated through water is:

25. The mass of 0.5 mol of carbon dioxide (molar mass 44.01 g mol⁻¹) is:

26. The liquid in which the electrodes of a Voltaic cell are partly dipped is called:

27. A specialised, differentiated form of cell membrane, formed by infoldings and characteristic of prokaryotes, is the:

28. Assertion (A): 2 g of hydrogen combines with 16 g of oxygen to form 18 g of water. Reason (R): According to Dalton's atomic theory, atoms combine in a simple whole number ratio to form compounds.

29. The pendulum clock was invented in the year:

30. The part of a neuron that receives signals from other neurons is the: