Chemistry The mass number of a nucleus is a fraction always more than the atomic weight the sum of the number of protons and neutrons present in the nucleus always less than its atomic number a fraction always more than the atomic weight the sum of the number of protons and neutrons present in the nucleus always less than its atomic number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is an example of noble gas ? Helium Nitrogen Chlorine Hydrogen Helium Nitrogen Chlorine Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Curd is sour due to presenceof Lactic acid Oxalic acid Acetic acid Tartaric acid Lactic acid Oxalic acid Acetic acid Tartaric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Ammonia Nitrous oxide Sulphur dioxide Arsine Ammonia Nitrous oxide Sulphur dioxide Arsine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Cast iron Pig iron Wrought iron Steel Cast iron Pig iron Wrought iron Steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atmospheric gas that is mainly responsible for Green House effect : Carbondioxide Oxygen Ozone Nitrogen Carbondioxide Oxygen Ozone Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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