Chemistry The chief source of naphthalene is Camphor Charcoal Diesel Coal-tar Camphor Charcoal Diesel Coal-tar ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of improving the quality of rubber by heating it with sulphur is called. Vulcanization Sulphonation Galvanization Acceleration Vulcanization Sulphonation Galvanization Acceleration ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number and the atomic mass Different atomic numbers and different atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass The same atomic number and the atomic mass Different atomic numbers and different atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element is Nitrogen Silicon Calcium Oxygen Nitrogen Silicon Calcium Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mineral containing both magnesium and calcium is magnesite calcite dolomite carnallite magnesite calcite dolomite carnallite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Tetraethyl lead Tetramethyl lead Trimethyl lead Triethyl lead Tetraethyl lead Tetramethyl lead Trimethyl lead Triethyl lead ANSWER DOWNLOAD EXAMIANS APP
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