Chemistry The number of neutrons present in an element having mass number 226 and atomic number 88 is : 50 314 138 88 50 314 138 88 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Carbon monoxide Carbon dioxide Methane Nitrous oxide and sulphur dioxide Carbon monoxide Carbon dioxide Methane Nitrous oxide and sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the main nitrogenous waste in humans ? Uric Acid Urea Ammonia Ammonium Nitrate Uric Acid Urea Ammonia Ammonium Nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass gets discoloured in air due to constant exposure in presence of: Hydrogenated wafers Aluminium sulphide Hydrogen sulphide Aluminium phosphide Hydrogenated wafers Aluminium sulphide Hydrogen sulphide Aluminium phosphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The natural resource, known as black gold is Platinum Lead Tin Coal Platinum Lead Tin Coal ANSWER DOWNLOAD EXAMIANS APP
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