Chemistry The metallic constituents of hard water are : Iron, tin and calcium Calcium, magnesium and iron Magnesium, tin and iron Magnesium, calcium and tin Iron, tin and calcium Calcium, magnesium and iron Magnesium, tin and iron Magnesium, calcium and tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas Remains unchanged Will increase four-fold Will be reduced to half Will be doubled Remains unchanged Will increase four-fold Will be reduced to half Will be doubled ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymerisation of which often following is used in manufacturing of polythene in industry ? Acetylene Styrene Methane Ethylene Acetylene Styrene Methane Ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High bond dissociation energy High nuclear charge Stable half filled 2p sub level Smaller atomic radius High bond dissociation energy High nuclear charge Stable half filled 2p sub level Smaller atomic radius ANSWER DOWNLOAD EXAMIANS APP
Chemistry Baking soda is : Potassium carbonate Sodium carbonate Sodium hydroxide Sodium bicarbonate Potassium carbonate Sodium carbonate Sodium hydroxide Sodium bicarbonate ANSWER DOWNLOAD EXAMIANS APP
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