Chemistry Which of the toxic heavy metals is found in modern tannery industries ? Nickel Lead Zinc Chromium Nickel Lead Zinc Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which mineral is the ore of aluminium ? Magnetite Bauxite Haematite Siderite Magnetite Bauxite Haematite Siderite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Galena Magnetite Siderite Pyrolusite Galena Magnetite Siderite Pyrolusite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Decomposition of manganese dioxide Electrolysis of water Fractional distillation of liquid air Decomposition of potassium permanganate Decomposition of manganese dioxide Electrolysis of water Fractional distillation of liquid air Decomposition of potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pyrethrin used in mosquito coil is obtained from A fungus An insect A seed plant A bacterium A fungus An insect A seed plant A bacterium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called : Vulcanization Zinc plating Alloy formation Galvanization Vulcanization Zinc plating Alloy formation Galvanization ANSWER DOWNLOAD EXAMIANS APP
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