Chemistry-Objective Related Question Answers
1051. What is formed by the mixture of hydrogen; methane and carbon monoxide?
Coal gas
1052. Which fuel is used in aeroplane?
Aviation spirit
1053. What are the components of natural gas?
Methane and hydrogen
1054. Coal containing 65% of carbon?
Bituminous coal
1055. Cement mixed with gravel; sand and water is called?
Concrete
1056. Which product of living organisms was the first to be made under laboratory conditions?
Urea
1057. Which drug is present in tobacco?
Nicotine
1058. Optical glass is?
Flint glass
1059. Which glass is generally used for making laboratory wires?
Heat resistant glass
1060. Substance used to give violet colour to glass?
Manganese dioxide
1061. Which glass is used for making lens?
Flint glass
1062. Cobalt compounds give which colour to glass?
Blue
1063. Raw material commonly used for all types of glass?
Silica
1064. Which glass is used as the wind shield of the motor cars?
Safety glass (laminated glass)
1065. Which glass is used for making electric bulb?
Soda glass
1066. Ferrous oxide gives which colour to glass?
Olive green
1067. Which substance is added for getting yellow colour to glass?
Chromium salt
1068. What is used for making prisms?
Flint glass
1069. Which laminates are used for making helmets?
Fibre glass
1070. Which substance is used for making PVC?
Vinyl chloride
1071. Which plastic acquires hardness permanently when heated and cooled?
Thermosetting plastics
1072. Which type of plastics is used for making adhesives; button etc?
Urea formaldehyde
1073. What is widely used for making nylon?
Caprolactum
1074. What is used for salting out; in the manufacture of soap?
Sodium chloride
1075. Which solvent is used for dry cleaning of clothes?
tetrachloro ethylene
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