Sets
General Science Set 23
30 questions 1. Thylakoids arranged in stacks like piles of coins are called:
2. The saturated hydrocarbon with five carbon atoms is:
3. In Thomson's model of the atom, the positive charge is:
4. Which of the following is a source of iron?
5. The property by which materials can be beaten into thin sheets is called:
6. The expression U = mgh for potential energy is valid only:
7. In yeast, pyruvate is converted into ethanol and carbon dioxide during:
8. In the right-hand thumb rule for a straight current-carrying conductor, the thumb points in the direction of the:
9. Consider the following statements:
(I) More solute can be dissolved in an unsaturated solution at a given temperature.
(II) A saturated solution can dissolve more solute at the same temperature.
(III) For most solids, a saturated solution at a particular temperature behaves as an unsaturated solution if the temperature is increased.
Which of the above is/are correct?
10. The food prepared in the leaves is transported to all parts of the plant through the:
11. The temperature and pressure at which all three phases of a substance coexist is called its:
12. Food chains generally consist of only three or four steps mainly because of:
13. With increase in temperature, the solubility of gases dissolved in liquids generally:
14. The number of base units in the SI system is:
15. Consider the following pairs:
(I) Snails – Sex determined by temperature
(II) A few reptiles – Sex determined by temperature of eggs
(III) Human beings – Sex largely genetically determined
Which of the pairs given above is/are correctly matched?
16. Pure water from any source contains hydrogen and oxygen in the mass ratio of:
17. Cities being warmer than their surrounding rural areas is known as the:
18. Which of the following statements is/are correct?
19. Pure iron, which is very soft, becomes hard and strong when mixed with about ______ of carbon.
20. When sound travels from a source to a listener, what is transferred through the medium?