Chemistry Permanent – hardness of water may be removed by addition of Potassium Permangante Lime Alum Sodium carbonate Potassium Permangante Lime Alum Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The hardest form of carbon is coke diamond graphite charcoal coke diamond graphite charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar made by fermentation from cane sugar contains Palmitic acid Citric acid Lactic acid Acetic acid Palmitic acid Citric acid Lactic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Mercury vapour and argon Sodium oxide and argon Mercury oxide and neon Sodium vapour and neon Mercury vapour and argon Sodium oxide and argon Mercury oxide and neon Sodium vapour and neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum consists of a mixture of Hydrocarbons Carbohydrates Carbonates Carbides Hydrocarbons Carbohydrates Carbonates Carbides ANSWER DOWNLOAD EXAMIANS APP
Chemistry The electronic configuration of an atom having atomic number ‘20’ is 2, 6, 8, 4 2, 8, 10 2, 8, 8, 2 2, 10, 8 2, 6, 8, 4 2, 8, 10 2, 8, 8, 2 2, 10, 8 ANSWER DOWNLOAD EXAMIANS APP
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