Chemistry - 04

Chemistry [Science] plays a major role for candidates preparing for competitive exams like University Assistant. Get instant Questions of Science - Chemistry from here. Kerala PSC Helper is a one source destination for all Chemistry to crack competitive exams conducted by Kerala Public Service Commission.
31. Which chemical is used for the preservation of biological specimen?
Answer :- Formalin

32. The alcohol which is present in the alcoholic beverages is .............
Answer :- Ethanol (Ethyl Alcohol)

33. What is 'Laughing gas'?
Answer :- Nitrous oxide

34. What is used as eyewash?
Answer :-  Boric Acid

35. Which element is used for manufacturing computer chips, solar cells and transistors?
Answer :- Silicon

36. Benzodiazepine is the most commonly used ............
Answer :-  Psychoactive drug (Sleeping pill)

37. Which chemical is used for the artificial ripening of fruits?
Answer :- Calcium carbide

38. What is the constituent elements of sugar?
Answer :-  Carbon, Hydrogen and Oxygen

39. What is known as table sugar?
Answer :-  Sucrose

40. Which sugar is used by the cells as the primary source of energy?
Answer :-  Glucose

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