Sets
General Science Set 67
30 questions 1. Coating iron or steel with a thin layer of zinc to prevent rusting is called:
2. Voluntary movements such as running and writing are carried out by:
3. The Haber–Bosch process produces ___ from atmospheric nitrogen:
4. The leucocytes that secrete histamine, serotonin and heparin are:
5. The gas evolved when ethanoic acid reacts with sodium carbonate, which turns lime water milky, is:
6. For a spherical mirror of small aperture, the principal focus lies midway between the:
7. Greater diversity among offspring is generated by:
8. In ice, compared with liquid water, the interparticle distance is:
9. Sound loudness is commonly measured in:
10. Long-term changes in temperature, rainfall and weather patterns are called:
11. The weight of a 1 kg object on different bodies is as follows. On which body is the weight smallest?
12. Weight, the force by which the Earth attracts an object, is measured in:
13. When tall pea plants with round seeds are crossed with short plants with wrinkled seeds, all F1 progeny are tall with round seeds. The dominant traits are:
14. The condition in which the crystalline lens of the eye becomes milky and cloudy is called:
15. Pure ethanol is called:
16. Which of the following is an example of chemotropism?
17. Consider the following pairs of curves on a pressure–temperature phase diagram and the phases coexisting on them:
(I) Fusion curve – solid and liquid
(II) Vaporisation curve – liquid and vapour
(III) Sublimation curve – solid and liquid
Which of the pairs given above is/are correctly matched?
18. Roots show phototropic movement by bending:
19. Acids that give rise to more H⁺ ions are called:
20. A particle executes SHM with a period of 0.5 s. Its angular frequency is: