Sets
General Science Set 21
30 questions 1. The idea that matter is composed of small indivisible particles called 'a-tomio' dates back to:
2. The Himalayan glaciers and polar ice caps belong to the:
3. The first step in the break-down of glucose, a six-carbon molecule, gives a three-carbon molecule called:
4. Two volumes of hydrogen react with one volume of oxygen to give:
5. The emissivity of a perfect radiator is:
6. Bovine spongiform encephalopathy (mad cow disease) is caused by:
7. Thomson's model of the atom is also called the:
8. Ethanoic acid is commonly called:
9. The central process behind asexual reproduction is:
10. A block of mass 0.5 kg attached to a spring of constant 200 N m⁻¹ oscillates on a frictionless surface. Its time period is approximately:
11. The Law of Conservation of Mass was proposed by:
12. Which pair of gases released by burning fossil fuels are greenhouse gases?
13. All isotopes of an element show the same chemical behaviour because they have the same number of:
14. Adding more nutrients to food during processing to improve its nutritional quality is called:
15. The particles settle over time when the mixture is a:
16. For a satellite in a circular orbit, the ratio of its kinetic energy to the magnitude of its potential energy is:
17. The secondary wall of a plant cell is formed on which side of the primary wall?
18. The notation K, L, M, N for shells originated from the X-ray experiments of:
19. Consider the following pairs:
(I) Threshing – Separating grains from stalks
(II) Decantation – Removing a liquid by tilting the vessel after solids settle
(III) Sieving – Separating iron articles using a magnet
Which of the pairs given above is/are correctly matched?
20. Food is transported from leaves to other parts of the plant through: