Chemistry When iron rusts, its weight First increases and then decreases Decreases Increases Remains the same First increases and then decreases Decreases Increases Remains the same ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Phosphate Arsenic Detergent Zinc Phosphate Arsenic Detergent Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element which is used for vulcanizing rubber Phosphorus Silicon Sulphur Bromine Phosphorus Silicon Sulphur Bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Submarines move under water. They have engines that run on Steam Batteries Petrol and oxygen Diesel Steam Batteries Petrol and oxygen Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iodine value is used to estimate Hydroxyl groups in oil Carboxylic groups in oil Alkali content in oil Unsaturation in oil Hydroxyl groups in oil Carboxylic groups in oil Alkali content in oil Unsaturation in oil ANSWER DOWNLOAD EXAMIANS APP
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