Chemistry The polymer obtained by the condensation of hexamethylene diamine and adipic acid is : Bakelite Nylon 66 Terylene Tollen's Bakelite Nylon 66 Terylene Tollen's ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is distillation adding sodium carbonate adding caustic soda boiling distillation adding sodium carbonate adding caustic soda boiling ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because The balloon is weightless Air exerts an upward force on the balloon Helium is less dense than air Helium pushes down on the air below the balloon The balloon is weightless Air exerts an upward force on the balloon Helium is less dense than air Helium pushes down on the air below the balloon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The components of water can be separated by Both A and B Chemical methods Physical methods They can not be separated Both A and B Chemical methods Physical methods They can not be separated ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a greenhouse gas ? Helium Sulphur dioxide Nitrogen Carbon dioxide Helium Sulphur dioxide Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of vinegar is Oxalic acid Formic acid Salycylic acid Acetic acid Oxalic acid Formic acid Salycylic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
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