Chemistry Acid rain' is caused due to air - pollution by Carbon monoxide Nitrous oxide and sulphur dioxide Carbon dioxide Methane Carbon monoxide Nitrous oxide and sulphur dioxide Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Calcium None of these Manganese Magnesium Calcium None of these Manganese Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore which contains 72% of iron is : Limonite Haematite Siderite Magnetite Limonite Haematite Siderite Magnetite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ruby and sapphire are oxides of Copper Tin Aluminium Iron Copper Tin Aluminium Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The influence of temperature on reaction rate is predicted by Van der Waals equation Lewis equation Arrhenius equation Kirchhoff's equation Van der Waals equation Lewis equation Arrhenius equation Kirchhoff's equation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is usually a mixture of : Lime stone and silicon dioxide Calcium aluminate and calcium ferrate Calcium silicate and calcium ferrate Calcium silicate and calcium aluminate Lime stone and silicon dioxide Calcium aluminate and calcium ferrate Calcium silicate and calcium ferrate Calcium silicate and calcium aluminate ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS