Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Nitrous oxide Carbon dioxide Chlorofluorocarbon Sulphur dioxide Nitrous oxide Carbon dioxide Chlorofluorocarbon Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used for cloud seeding for artificial rains is Silver Nitrate Silver Iodide Potassium Bromide Potassium Nitrate Silver Nitrate Silver Iodide Potassium Bromide Potassium Nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tetra ethyle lead (TEL) is An antioxidant An antiknock compound A catalyst in burning fossil fuel A reductant An antioxidant An antiknock compound A catalyst in burning fossil fuel A reductant ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a chemical bond is formed ? Energy is always absorbed Energy is neither released nor absorbed Energy in always released More energy is released than is absorbed Energy is always absorbed Energy is neither released nor absorbed Energy in always released More energy is released than is absorbed ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of s-electrons in Mg(Z = 12) p-electrons in CI(Z = 17) d-electrons in Fe(Z = 26) p-electrons in Ne(Z = 10) s-electrons in Mg(Z = 12) p-electrons in CI(Z = 17) d-electrons in Fe(Z = 26) p-electrons in Ne(Z = 10) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms having the same number of protons but different number of neutrons are called : Anions Isotopes Higgs-boson Cations Anions Isotopes Higgs-boson Cations ANSWER DOWNLOAD EXAMIANS APP
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