Chemistry The two metal ions that cause hardness to water are: Sodium, Magnesium Sodium, Calcium Sodium, Potassium Calcium, Magnesium Sodium, Magnesium Sodium, Calcium Sodium, Potassium Calcium, Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the toxic heavy metals is found in modern tannery industries ? Lead Nickel Zinc Chromium Lead Nickel Zinc Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry In silvery paints, the main constituent present is Aluminium powder Lead powder Silver powder White lead Aluminium powder Lead powder Silver powder White lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cooking gas is a mixture of Carbon monoxide and carbon dioxide Carbon dioxide and oxygen Methane and ethylene Butane and propane Carbon monoxide and carbon dioxide Carbon dioxide and oxygen Methane and ethylene Butane and propane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron rusts quickly in River water Rain water Distilled water Sea water River water Rain water Distilled water Sea water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is River water Sea water Rain water Lake water River water Sea water Rain water Lake water ANSWER DOWNLOAD EXAMIANS APP
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