Chemistry The mass number of a nucleus is a fraction always more than the atomic weight always less than its atomic number the sum of the number of protons and neutrons present in the nucleus a fraction always more than the atomic weight always less than its atomic number the sum of the number of protons and neutrons present in the nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Ethane Carbon monoxide Carbon di-oxide Methane Ethane Carbon monoxide Carbon di-oxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The 'solid waste' is also known as Sedge Toxic waste Sludge Scrubber Sedge Toxic waste Sludge Scrubber ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the chemical symbol of mercury Mr Hg Mg None of these Mr Hg Mg None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a nucleon? Electron Positron Neutron Proton Electron Positron Neutron Proton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of neutrons in an atom of hydrogen is One Zero Three Two One Zero Three Two ANSWER DOWNLOAD EXAMIANS APP
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