Chemistry Solder metal is an alloy of Copper and zinc Copper and tin Lead and tin Lead and antimony Copper and zinc Copper and tin Lead and tin Lead and antimony 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 × 1020 '6.023 × 10–23 '6.023 × 10–20 6.023 × 1023 6.023 × 1020 '6.023 × 10–23 '6.023 × 10–20 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Major portion of the earth’s crust is mainly constituted by Oxygen and Silicon Silicon and Iron Oxygen and Iron Silicon and Aluminium Oxygen and Silicon Silicon and Iron Oxygen and Iron Silicon and Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Malathion is a/an Insecticide Preservative Fumigant Pesticide Insecticide Preservative Fumigant Pesticide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is usually a mixture of : Lime stone and silicon dioxide Calcium silicate and calcium ferrate Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Lime stone and silicon dioxide Calcium silicate and calcium ferrate Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Table salt gets moist during rainy season because Sodium chloride is hygroscopic Sodium chloride contains some quantity of sodium iodide Sodium chloride contains hygroscopic impurities like magnesium chloride Sodium chloride is deliquescent Sodium chloride is hygroscopic Sodium chloride contains some quantity of sodium iodide Sodium chloride contains hygroscopic impurities like magnesium chloride Sodium chloride is deliquescent ANSWER DOWNLOAD EXAMIANS APP
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