Everyday Science MCQs Part 4

everyday science mcat and ecat test preparation
31. Which of the following helps in the clotting of blood.?
A. Vitamin b
B. Vitamin c
C. Vitamin d
D. Vitamin k

32. Which vitamin is provided by the sunlight to the human body.?
A. A
B. B
C. C
D. D

33. Which of the following is caused by a vitamin a deficiency.?
A. Edema
B. Anemia
C. Night blindness
D. Rickets

34. Which vitamin deficiency leads to scurvy.?
A. Vitamin b
B. Vitamin k
C. Vitamin c
D. Vitamin e

35. Which of the following chemicals is used for fruit ripening.?
A. Calcium carbide
B. Sodium chloride
C. Potassium chloride
D. None of these

36. Marsh gas mainly contains.?
A. C2h2
B. Co
C. Ch4
D. H2s

37. Carbon occurs in nature in the purest from as.?
A. Graphite
B. Carbon black
C. Diamond
D. Coal

38. What is the air.?
A. Element
B. Compound
C. Mixture
D. Colloid

39. First organic chemical to be synthesized in laboratory.?
A. Phosphoric acid
B. Oxalic acid
C. Citric acid
D. Urea

40. The most abundant element in the earth’s crust is.?
A. Oxygen
B. Silicon
C. Aluminum
            D. Nitrogen

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