Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Calcium Manganese Magnesium None of these Calcium Manganese Magnesium None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Fungus which is used in the alcohol industry is Yeast Rhizopus Mushroom Candida Aibicans Yeast Rhizopus Mushroom Candida Aibicans ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant metal in the Earth’s crust is Copper Iron Aluminium Zinc Copper Iron Aluminium Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stains of rust on clothes can be removed by : H2O2 Alcohol Oxalic acid Petrol H2O2 Alcohol Oxalic acid Petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Proton Positron Alpha particles Beta particles Proton Positron Alpha particles Beta particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is 6.023 × 1023 '6.023 × 10–23 '6.023 × 10–20 6.023 × 1020 6.023 × 1023 '6.023 × 10–23 '6.023 × 10–20 6.023 × 1020 ANSWER DOWNLOAD EXAMIANS APP
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