Chemistry Ozone layer is present in Stratosphere Troposphere Exosphere Ionosphere Stratosphere Troposphere Exosphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas emitted by power stations causes acid rain? Nitrogen Carbon dioxide Helium Sulphur dioxide Nitrogen Carbon dioxide Helium Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry In an oxygen molecule, two atoms are united by Three bonds Two bonds Four bonds One bond Three bonds Two bonds Four bonds One bond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents are Sodium salts of fatty acids None of these Sodium salt of benzoic acid Sodium salts of sulphonic acids Sodium salts of fatty acids None of these Sodium salt of benzoic acid Sodium salts of sulphonic acids ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of naturally occurring elements 92 98 110 62 92 98 110 62 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The common refrigerant in domestic refrigerator is Nitrogen Oxygen Freon Neon Nitrogen Oxygen Freon Neon ANSWER DOWNLOAD EXAMIANS APP
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