Chemistry General Knowledge Questions and Answers: Chemistry GK

Chemistry-General Knowledge questions and answers

41. The cathode of a lead storage battery is made up of  

A.  Zinc
B.  Lead oxide
C.  Manganese dioxide
D.  Lead

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42. Vinegar is trade name of  

A.  Acetic acid
B.  Chloroform
C.  Ethyl alcohol
D.  Carbon tetrachloride

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43. Which of the following elements behave chemically both as metal and non metal?  

A.  Boron
B.  Argon
C.  Carbon
D.  Xenon

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44. Nail polish remover contains  

A.  Acetone
B.  Benzeme
C.  Petroleum ether
D.  Acetic acid

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45. Which one of the following correctly defines the state of glass?  

A.  Crystalline solid
B.  Super cooled liquid
C.  Condensed gas
D.  Liquid crystal

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46. Which one of the following is an element which never exhibits positive oxidation state in any of its compounds?  

A.  Oxygen
B.  Chlorine
C.  Fluorine
D.  Carbon

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47. Which one of the following materials is suitable for water purification?  

A.  Silicones
B.  Zeolites
C.  Asbestos
D.  Quartz

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48. Which one of the following is a major constituent of Biogas ?  

A.  Carbon dioxide
B.  methane
C.  hydrogen
D.  nitrogen dioxide

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49. Which one of the following is present in the emission from “unleaded petrol”?  

A.  carbon monoxide
B.  carbon dioxide
C.  ethylene
D.  hydrocarbons

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50. Which one of the following is used in preparing match sticks?  

A.  Chile saltpeter
B.  Indian salpetre
C.  Red phosphorus
D.  Sodium bicarbonate

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