Chemistry Mcqs

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Chemistry Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.

 

31. What is the Air
(a) Element
(b) Compound
(c) Mixture
(d) Colloid

 

32. The ore of aluminium metal is
(a) Cuprite
(b) Galena
(c) Bauxite
(d) Zirconite

 

33. What element is the most electronegative and reactive of all elements
(a) Hydrogen
(b) Chlorine
(c) Fluorine
(d) Oxygen

 

34. The filament of an electric bulb is made of
(a) Tungsten
(b) Iron
(c) Nichrome
(d) Carbon

 

35. What element’s three isotopes have different names
(a) Oxygen
(b) Helium
(c) Hydrogen
(d) Carbon

 

36. Which of these is a noble metal
(a) Gold
(b) Calcium
(c) Magnesium
(d) Zinc

37. What is the PH of water
(a) 9
(b) 6
(c) 7
(d) 8

 

38. This acid is used in almost all car batteries and is also known as ‘Oil of Vitriol’. Which acid is it
(a) Sulphuric acid
(b) Perchloric acid
(c) Nitric add
(d) Acetic acid

 

39. Which metal is extracted from hematite
(a) Copper
(b) Iron
(c) Zinc
(d) Potassium

 

40. What was the first element to be produced artificially
(a) Plutonium
(b) Neptunium
(c) Francium
(d) Technetium

 

41. What is the name of the pigment that gives the green color to plants
(a) Carotene
(b) Chlorophyll
(c) Phenolphthalein
(d) Xanthophyll

 

42. The name “copper” is derived from the name of the tiny island country of
(a) Cyprus
(b) Denmark
(c) Greece
(d) Malta

 

43. Which of the following bases is involved in the making of soap
(a) Baking soda
(b) Caustic soda
(c) Ammonia
(d) Washing soda

 

44. The most commonly used bleaching agent is
(a) Sodium chloride
(b) Carbon dioxide
(c) Chlorine
(d) Alcohol

 

45. The development of the ultra microscope makes use of the
(a) Edison effect
(b) Tyndall effect
(c) Brownian motion
(d) Zeeman effect

 

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