Chemistry The two metal ions that cause hardness to water are: Sodium, Potassium Sodium, Magnesium Calcium, Magnesium Sodium, Calcium Sodium, Potassium Sodium, Magnesium Calcium, Magnesium Sodium, Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry In the periodic table of elements, on moving from left to right across a period, the atomic radius Does not follow a definite pattern Increases Remains unchanged Decreases Does not follow a definite pattern Increases Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Bhopal gas tragedy' 1984 is related to which gas Methyl bromide Carbon dioxide Aluminium Phosphide Methyl isocyanate Methyl bromide Carbon dioxide Aluminium Phosphide Methyl isocyanate ANSWER DOWNLOAD EXAMIANS APP
Chemistry One of the following is used to dissolve noble metals. That is Nitric acid Sulphuric acid Aqua ragia Hydrochloric acid Nitric acid Sulphuric acid Aqua ragia Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the petroleum wax ? Jojoba wax Paraffin wax Carnauba wax Bees wax Jojoba wax Paraffin wax Carnauba wax Bees wax ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Lead peroxide and lead Iron and cadmium Zinc and carbon Nickel and cadmium Lead peroxide and lead Iron and cadmium Zinc and carbon Nickel and cadmium ANSWER DOWNLOAD EXAMIANS APP
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