Chemistry Atomic number of an atom gives the number of which of the following ? Protons Neutrons Electrons Neutrons and protons Protons Neutrons Electrons Neutrons and protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most commonly used bleaching agent is Alcohol Sodium chloride Chlorine Carbon dioxide Alcohol Sodium chloride Chlorine Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Carbon dioxide Chlorofluorocarbons Methane Nitrous oxide Carbon dioxide Chlorofluorocarbons Methane Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Trimethyl lead Tetramethyl lead Tetraethyl lead Triethyl lead Trimethyl lead Tetramethyl lead Tetraethyl lead Triethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a period from Li to F, ionisation potential Remains same Cannot be predicted Decreases Increases Remains same Cannot be predicted Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aqua regia is a 1 : 3 mixture, by volume, of Conc. hydrochloric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid Conc. sulphuric acid and conc. nitric acid Conc. nitric acid and conc. sulphuric acid Conc. hydrochloric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid Conc. sulphuric acid and conc. nitric acid Conc. nitric acid and conc. sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
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