General Science Set 29 FAQs

1. The Montreal Protocol reduced the use of:

2. The thick white and yellowish clouds in the atmosphere of Venus are made of:

3. In 2010, a synthetic copy of the DNA of which bacterium was inserted into a related cell whose own DNA had been removed?

4. Convex mirrors are used as rear-view mirrors in vehicles because they have a:

5. After fertilisation, the ovary develops into a:

6. At the boiling point of a liquid, vapour formation occurs:

7. A child slides from rest down a frictionless slide of height 3.2 m (g = 10 m s⁻²). The velocity at the bottom is:

8. Which of the following plants has taproots and reticulate venation?

9. Acidic factory waste is made safe for a lake before release by adding:

10. The results of Faraday's electrolysis experiments suggested the:

11. Consider the following statements about the events during photosynthesis: (I) Absorption of light energy by chlorophyll. (II) Splitting of water molecules into hydrogen and oxygen. (III) Oxidation of carbon dioxide to carbohydrates. Which of the above is/are correct?

12. The molecular formula of the alkene with five carbon atoms is:

13. Two boxes of masses 2 kg and 3 kg, connected by a string, lie on a frictionless horizontal surface. A horizontal force of 20 N pulls the 2 kg box. The acceleration of the system is:

14. Green plants in a terrestrial ecosystem capture about ______ of the energy of sunlight falling on their leaves.

15. James Watt, after whom the SI unit of power is named, is known for inventing:

16. The gas released by plants during photosynthesis is:

17. The classical definition of reduction was:

18. At the equilibrium position of an oscillating body, the net external force on it is:

19. Consider the following statements: (I) Gibberellins help in the growth of the stem. (II) Cytokinins are present in greater concentration in fruits and seeds. (III) Abscisic acid promotes growth. Which of the above is/are correct?

20. The Law of Conservation of Mass and the Law of Constant Proportions together formed the basis of:

21. The SI unit of electric potential difference is named after:

22. Rhododendrons on mountain tops in the Shola forests of Nilgiris survive heavy winds because they have:

23. Which of the following is not classified as a metal or a non-metal because it is not an element?

24. As the distance from a straight current-carrying wire increases, the magnetic field produced by a given current:

25. The most diverse plant group on the Earth is:

26. The 17th-century work on Indian plants compiled by Hendrik van Rheede is:

27. The new Moon day is also called:

28. The method of arranging objects into groups on the basis of a common property is called:

29. Plantlets mass-produced from the shoot tip (apical meristem) by tissue culture help eliminate:

30. The part of the human ear that converts vibrations into electrical signals for the brain is the: