When dust particles collide randomly in a beam of Sunlight, the phenomenon observed is known as?
A. Brownian movement. B. Dialysis C. Diffusion D. Osmosis E. Tyndall effect Correct Answer: Option E – Tyndall effect Explanation The Tyndall Effect is the effect of light scattering in colloidal dispersion while showing no light in a true solution. This effect...
The most efficient absorber of ultraviolet radiation in the atmosphere is?
A. CO2 B. H2 C. H2O D. O2 E. O3 Correct Answer: Option E – O3
Chlorine atom forms Cl‾ by?
A. donating lone pair of electrons B. gaining an electron C. losing an electron D. sharing an electron E. sharing a lone pair of electrons. Correct Answer: Option B – gaining an electron
The type of reaction ethyne mainly undergoes is?
A. addition B. carboxylation. C. esterification D. saponification E. substitution Correct Answer: Option A – addition
All the following belong to the same family EXCEPT?
A. glycerol B. nylon C. perspex polyethene D. polyethene E. polystyrene Correct Answer: Option A – glycerolProducts
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