Chemistry Which of the following type of coal has the lowest proportion of volatile matter ? Peat Anthracite Lignite Bituminous Peat Anthracite Lignite Bituminous ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Nitrogen Helium Hydrogen Air Nitrogen Helium Hydrogen Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a chemical bond is formed ? More energy is released than is absorbed Energy is always absorbed Energy in always released Energy is neither released nor absorbed More energy is released than is absorbed Energy is always absorbed Energy in always released Energy is neither released nor absorbed ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum is a mixture of Salts Elements Hydrocarbons Polymers Salts Elements Hydrocarbons Polymers ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Hydrogen Nitrogen Sodium Neon Hydrogen Nitrogen Sodium Neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of carbon in cost iron is : 6 to 8 0.5 to 1.5 3 to 5 0.01 to 0.25 6 to 8 0.5 to 1.5 3 to 5 0.01 to 0.25 ANSWER DOWNLOAD EXAMIANS APP
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