Chemistry The mass number of a nucleus is the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight always less than its atomic number a fraction the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight always less than its atomic number a fraction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is most toxic ? Carbon dioxide Carbon monoxide Chlorine Sulphur dioxide Carbon dioxide Carbon monoxide Chlorine Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Coal Hydrogen Kerosene Diesel Coal Hydrogen Kerosene Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Muscle fatigue is caused by the accumulation of : Oxalacetic acid Uric acid Pyruvic acid Lactic acid Oxalacetic acid Uric acid Pyruvic acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Sodium vapour and neon Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon Sodium vapour and neon Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when kept in the open for sometime due to the formation of Acetic acid Carbonic acid Citric acid Lactic acid Acetic acid Carbonic acid Citric acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
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