Chemistry Of the following, which one pollutes the air of a big city ? Lead Chromium Copper Cadmium Lead Chromium Copper Cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Domestic cooking gas consists mostly of Methane and ethane Liquified butane and isobutane Ethylene and carbon monoxide Hydrogen and acetylene Methane and ethane Liquified butane and isobutane Ethylene and carbon monoxide Hydrogen and acetylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Sodium vapour and neon Sodium oxide and argon Mercury vapour and argon Mercury oxide and neon Sodium vapour and neon Sodium oxide and argon Mercury vapour and argon Mercury oxide and neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Cannot be negative Can have any value above zero Can never be positive Will always be positive Cannot be negative Can have any value above zero Can never be positive Will always be positive ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a commercial source of energy? Agricultural waste Sun Natural gas Dried dung Agricultural waste Sun Natural gas Dried dung ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sour taste of ‘Coca Cola’ is due to the presence of Hydrochloric acid Formic acid Acetic acid Phosphoric acid Hydrochloric acid Formic acid Acetic acid Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
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