Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Tetraethyl lead Triethyl lead Tetramethyl lead Trimethyl lead Tetraethyl lead Triethyl lead Tetramethyl lead Trimethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'laughing gas' is Nitrogen pentoxide Nitrous oxide Nitric oxide Nitrogen dioxide Nitrogen pentoxide Nitrous oxide Nitric oxide Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to extinguish fire is Carbon monoxide Carbon dioxide Neon Nitrogen Carbon monoxide Carbon dioxide Neon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of aluminium is magnetite monazite haematite bauxite magnetite monazite haematite bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Flocculation Water softening Filtration Sedimentation Flocculation Water softening Filtration Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Saline soil contains High concentration of salt Lot of moisture None of these Hard rocks High concentration of salt Lot of moisture None of these Hard rocks ANSWER DOWNLOAD EXAMIANS APP
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