General Knowledge on General Science

(Click on suggested Options to select the answer \| Color Red means : Wrong & Green Means: Correct)
141. Which one among the following nontoxic gases helps in formation of enzymes which ripen fruit? A. Acetylene B. Ethane C. Methane D. Carbon dioxide Check Answer \| Discussion 142. Which of the following is the most important factor for speciation? A. Morphological isolation B. Ethological isolation C. Reproductive isolation D. Geographical isolation Check Answer \| Discussion 143. One of the occupational health hazards commonly faced by the workers of ceramic , pottery or glass industries is A. stone formation in gall bladder B. melanoma C. stone formation in kidney D. silicosis Check Answer \| Discussion 144. The role of the calcinations metallurgical process is A. to remove moisture B. to decompose carbonate into oxide C. to remove organic matter D. All of the above Check Answer \| Discussion 145. Which one among the following polymers is re-synthesised from the naturally occurring polymer? A. Kevlar B. Teflon C. Rayon D. Cellulose Check Answer \| Discussion 146. Which one of the following compounds was responsible for the epidemic form of disease called 'Minamata Disease? A. A lead compound B. A mercury compound C. A sulphur compound D. A fluorine compound Check Answer \| Discussion 147. Why hard water does not give lather with soap? A. Hard water contains calcium and magnesium ions which form precipitate with soap. B. Hard water contains sulphate and chloride ions which form precipitate . C. pH of hard water is high. D. pH of hard water is less. Check Answer \| Discussion 148. The common soap used in washing is worked by A. reducing the surface tension of water B. increasing the surface tension of water C. reducing the viscosity of water D. increasing the viscosity of water Check Answer \| Discussion 149. Which one of the following is correct when a body moving in a circular path with constant speed ? A. The body has constant acceleration B. The body has constant retardation C. The body has variable acceleration D. The body has constant velocity and variable speed Check Answer \| Discussion 150. Which one among the following is the function of osphradium found in Pila globosa? A. Tangoreception B. Photoreception C. Thermoreception D. Chemoreception Check Answer \| Discussion
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General Knowledge on General Science

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