Sets
General Science Set 57
30 questions 1. The area enclosed by a velocity-time graph and the time axis gives:
2. Lime water is a solution of:
3. The tissue system that forms the outer covering of the plant and reduces water loss is the:
4. A sound wave in air has a frequency of 500 Hz and a wavelength of 0.68 m. Its speed is:
5. The Indian variety of the pitcher plant is:
6. The first international conference on chemistry, held in 1860, took place at:
7. Most bats locate prey in the dark by emitting short bursts of:
8. The 'Shuchi Scheme' for distributing sanitary pads in government schools is a programme of:
9. Substances that turn blue litmus paper red are:
10. A particle in SHM has amplitude 0.2 m and angular frequency 5 rad s⁻¹. Its maximum speed is:
11. The Na⁺/K⁺ pump is an example of:
12. In a separating funnel containing mustard oil and water, the layer collected at the top is:
13. Which of the following helps reduce reverberation in an auditorium?
14. Consider the following pairs:
(I) Rhizopus – Phycomycetes
(II) Neurospora – Basidiomycetes
(III) Alternaria – Deuteromycetes
Which of the pairs given above is/are correctly matched?
15. Venus is hotter than Mercury, although farther from the Sun, because of:
16. The rigid matrix of bone contains compounds of:
17. The extraction of metals from their ores and then refining them is known as:
18. Water has its maximum density at:
19. Assertion (A): Roots stop growing in length when their tips are cut.
Reason (R): Roots grow only from their tips, where cells divide continuously.
20. Assertion (A): Solutions do not exhibit the Tyndall effect.
Reason (R): The particles in a solution are smaller than 1 nm in diameter.