Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Nitrous oxide Sulphur dioxide Chlorofluorocarbons Carbon dioxide Nitrous oxide Sulphur dioxide Chlorofluorocarbons Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Nitrous oxide Coloured impurities Oxygen Nitrogen dioxide Nitrous oxide Coloured impurities Oxygen Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water Heat is absorbed No heat change takes place Temperature decreases Heat is liberated Heat is absorbed No heat change takes place Temperature decreases Heat is liberated ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Galena Siderite Pyrolusite Magnetite Galena Siderite Pyrolusite Magnetite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bakelite is a co-polymer of Phenol and Acetaldehyde Formaldehyde Cinnaldehyde Benzaldehyde Acetaldehyde Formaldehyde Cinnaldehyde Benzaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry A non-electronic conductor is Gas Carbon Iron None of these Copper Sulphate Gas Carbon Iron None of these Copper Sulphate ANSWER DOWNLOAD EXAMIANS APP
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