Sets
General Science Set 51
30 questions 1. From about which week is the developing embryo called a foetus?
2. In the electrolytic refining of a metal, the impure metal is made the:
3. Consider the following pairs:
(I) Electric bulb – Electrical energy to light energy
(II) Ringing bell – Mechanical energy to sound energy
(III) Electric water heater – Electrical energy to mechanical energy
Which of the pairs given above is/are correctly matched?
4. The loss of water in the form of vapour from the aerial parts of a plant is called:
5. Compounds are formed when different elements combine in:
6. The force with which the Earth pulls an object towards itself is called its:
7. The tissue that forms the outer covering of the body and lines internal organs such as the mouth, lungs, blood vessels and intestine is:
8. The chemical action within a cell generates:
9. Which of the following does not change the colour of either red or blue litmus paper?
10. New plants arising from the roots, stems or leaves of a plant is called:
11. The unit hertz is named after the discoverer of:
12. Which food component is a source of stored energy?
13. Non-metals react with hydrogen to form:
14. Consider the following statements about Rutherford's conclusions:
(I) The positive charge is concentrated in a very small volume.
(II) The nucleus occupies most of the volume of the atom.
(III) The nucleus contains most of the mass of the atom.
Which of the above is/are correct?
15. The cup-shaped end of a coiled tube in a nephron that collects the filtrate is the:
16. On mixing with water, Plaster of Paris changes to:
17. An object moving in a straight line travels equal distances in equal intervals of time, for all choices of intervals. Its speed is:
18. Disease-causing organisms are collectively called:
19. India's first pharmaceutical company was established by Acharya P.C. Ray in the year:
20. The SI unit of the coefficient of viscosity is: