Chemistry Two moles of an ideal gas expand freely into vacuum. The work done by the gas is 4J Infinity 2J 4J Infinity 2J ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a micro-element ? Nitrogen Oxygen Chlorine Hydrogen Nitrogen Oxygen Chlorine Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents are Sodium salts of fatty acids Sodium salts of sulphonic acids None of these Sodium salt of benzoic acid Sodium salts of fatty acids Sodium salts of sulphonic acids None of these Sodium salt of benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Ozone Sodium peroxide Barium peroxide Hydrogen peroxide Ozone Sodium peroxide Barium peroxide Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of None of these Methane Carbon dioxide Sulphur dioxide None of these Methane Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of oxygen in air is approximately 1 0.01 0.21 0.78 1 0.01 0.21 0.78 ANSWER DOWNLOAD EXAMIANS APP
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