General Science Set 71 FAQs

1. In a domestic circuit, different appliances are connected:

2. Consider the following pairs: (I) Bicuspid valve – Between left atrium and left ventricle (II) Tricuspid valve – Between left atrium and left ventricle (III) Semilunar valves – Openings of ventricles into pulmonary artery and aorta Which of the pairs given above is/are correctly matched?

3. Above an aircraft wing producing dynamic lift, compared with below it, the air has:

4. Detergents remain effective in hard water because their charged ends:

5. The red colour of blood is due to:

6. A rainbow is always formed in a direction:

7. Which allotrope of carbon conducts electricity?

8. Camels developed humps over time to:

9. Consider the following pairs: (I) Rhizobium – Nitrogen fixation in root nodules of legumes (II) Nitrobacter – Conversion of nitrite to nitrate (III) Pseudomonas – Nitrification Which of the pairs given above is/are correctly matched?

10. Carbon cannot reduce the oxides of sodium, magnesium, calcium and aluminium because these metals have more affinity for oxygen than for:

11. The number of chambers in the heart of fishes is:

12. The angle of incidence is the angle between the:

13. Earth is called the Blue Planet because:

14. Consider the following pairs: (I) Waxing period – Shukla Paksha (II) Waning period – Krishna Paksha (III) Waning period – Shukla Paksha Which of the pairs given above is/are correctly matched?

15. The paediatrician who developed and implemented the treatment for dehydration using Oral Rehydration Solution (ORS) was:

16. A bone marrow transplant using stem cells from a healthy person is used to treat blood cancers like leukemia and the disorder:

17. A constant-volume gas thermometer reads temperature in terms of:

18. To obtain the molecular formula from the empirical formula, the additional data required is the:

19. A small fragment on a chromosome, formed by a non-staining secondary constriction, is called a:

20. In our country, the potential difference between the live wire and the neutral wire is:

21. The acidic properties of acids are due to the formation of which ions in solution?

22. Consider the following statements about reducing food miles: (I) It helps cut down the cost and pollution of transport. (II) It helps support local farmers. (III) It increases pollution during transport. Which of the above is/are correct?

23. A passenger seated in a moving bus is in motion with respect to:

24. Which of the following phyla shows organ-level organisation?

25. In paper chromatography, at the start of the experiment, the solvent level should be:

26. The fundamental frequency of a note is 256 Hz. The fundamental frequency of the note one octave higher is:

27. Consider the following statements: (I) Seeds require water for germination. (II) Most seeds do not require light for germination. (III) Sunlight is essential for the germination of all seeds. Which of the above is/are correct?

28. In a series combination of resistors, the quantity that is the same through every resistor is:

29. Compounds with identical molecular formula but different structures are called:

30. In reptiles and birds, each egg contains enough yolk to nourish the embryo until: