Chemistry The metal used to galvanise iron to protect it from rusting is Antimony Chromium Zinc Lead Antimony Chromium Zinc Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry CNG used in automobiles to check pollution, mainly consists of N2 CO2 H2 CH4 N2 CO2 H2 CH4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Heavy metals Halogens Light metals Noble gases Heavy metals Halogens Light metals Noble gases ANSWER DOWNLOAD EXAMIANS APP
Chemistry A powerful eye irritant present in smog is Carbon dioxide Sulphur dioxide Peroxyacetyl nitrate Nitric oxide Carbon dioxide Sulphur dioxide Peroxyacetyl nitrate Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 6 18 12 Zero 6 18 12 Zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is always less than its atomic number always more than the atomic weight a fraction the sum of the number of protons and neutrons present in the nucleus always less than its atomic number always more than the atomic weight a fraction the sum of the number of protons and neutrons present in the nucleus ANSWER DOWNLOAD EXAMIANS APP
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