Chemistry Main pollutants released from iron and steel industry are NO, SO3 and H2S CO2, H2S and NO2 CO2, NO2 and SO3 CO, CO2 and SO2 NO, SO3 and H2S CO2, H2S and NO2 CO2, NO2 and SO3 CO, CO2 and SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the highest quality of hard coal? Bituminous Lignite Peat Anthracite Bituminous Lignite Peat Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Semiconductors All of these Solar energy devices Transistors Semiconductors All of these Solar energy devices Transistors ANSWER DOWNLOAD EXAMIANS APP
Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From blue to pink From brown to orange-red From pink to blue-green From brown to blue-black From blue to pink From brown to orange-red From pink to blue-green From brown to blue-black ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used for making aircrafts and rockets is Aluminium Copper Nickel Lead Aluminium Copper Nickel Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element absorbed both in cation and anion form is Sulphur Nitrogen Calcium Phosphorus Sulphur Nitrogen Calcium Phosphorus ANSWER DOWNLOAD EXAMIANS APP
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