General Science Set 58 FAQs

1. Using the data below, the mass of potassium nitrate needed to prepare a saturated solution in 50 g of water at 40 °C is:

2. The gold foil experiment was carried out by Geiger and Marsden, under Rutherford, in:

3. Consider the following pairs: (I) Bacillus – Rod-shaped (II) Coccus – Spherical (III) Vibrio – Spiral Which of the pairs given above is/are correctly matched?

4. Consider the following statements: (I) The density of a substance is independent of its shape or size. (II) The density of a substance depends on temperature and pressure. (III) Pressure significantly affects the density of solids and liquids. Which of the above is/are correct?

5. The minimum time gap between two sounds for them to be heard as separate sounds is:

6. Gametes formed by meiosis are:

7. The simplest whole number ratio of the various atoms present in a compound is represented by its:

8. Consider the following pairs: (I) α-rays – Positively charged particles (II) β-rays – Negatively charged particles similar to electrons (III) γ-rays – Stream of positively charged particles Which of the pairs given above is/are correctly matched?

9. Which of the following is acellular?

10. The force exerted by a fluid at rest on a surface in contact with it is always:

11. The transfer of pollen grains from the anther to the stigma of a flower is called:

12. Pure substances are classified into:

13. Aryabhata's stated time for one full rotation of the Earth about its axis is about:

14. The ability of some mature plant cells to undifferentiate, divide and redifferentiate into a new plant is called:

15. Aqua regia is a freshly prepared mixture of concentrated HCl and concentrated HNO₃ in the ratio:

16. The poles of an electromagnet can be reversed by changing the:

17. Genetic material is stored:

18. Which of the following elements has atoms, rather than molecules, as its constituent particles?

19. A satellite orbits a planet at a radius R with time period T. Another satellite orbits the same planet at a radius 4R. Its time period is:

20. Which of the following is a deficiency disease?

21. In asexual reproduction, minor variations arise mainly due to:

22. The number of neutrons in an atom with atomic number 53 and mass number 127 is:

23. A reducing agent is a species that is:

24. In plants, which gas can be considered a waste product of photosynthesis?

25. The terminal velocity of a sphere falling through a viscous medium is directly proportional to the:

26. A soap solution appears cloudy because the micelles are large enough to:

27. Curd turns sour due to the production of:

28. How frequency is perceived by humans is called:

29. Which of the following is a transparent material?

30. Water covers about ______ of the Earth's surface.