Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Aluminium Copper Zinc Silver Aluminium Copper Zinc Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Need less energy to move them Are lighter Have negative charge Experience collision less frequently Need less energy to move them Are lighter Have negative charge Experience collision less frequently ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is the sum of the number of protons and neutrons present in the nucleus a fraction always less than its atomic number always more than the atomic weight the sum of the number of protons and neutrons present in the nucleus a fraction always less than its atomic number always more than the atomic weight ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two electrons in an orbital are differentiated by which of the following ? Magnetic quantum number Azimuthal quantum number Principal quantum number Spin quantum number Magnetic quantum number Azimuthal quantum number Principal quantum number Spin quantum number ANSWER DOWNLOAD EXAMIANS APP
Chemistry The common refrigerant in domestic refrigerator is Nitrogen Oxygen Freon Neon Nitrogen Oxygen Freon Neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The trans-uranium elements are the chemical elements with atomic numbers greater than 96 86 92 89 96 86 92 89 ANSWER DOWNLOAD EXAMIANS APP
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