Chemistry The most abundant element in the earth’s atmosphere is Nitrogen Oxygen Argon Krypton Nitrogen Oxygen Argon Krypton ANSWER DOWNLOAD EXAMIANS APP
Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 8 –4 Zero 4 8 –4 Zero 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not soluble in water ? Lead Sulphate Potassium sulphate Zinc sulphate Sodium sulphate Lead Sulphate Potassium sulphate Zinc sulphate Sodium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a chemical bond is formed ? Energy is neither released nor absorbed Energy is always absorbed Energy in always released More energy is released than is absorbed Energy is neither released nor absorbed Energy is always absorbed Energy in always released More energy is released than is absorbed ANSWER DOWNLOAD EXAMIANS APP
Chemistry A powerful eye irritant present in smog is Carbon dioxide Sulphur dioxide Nitric oxide Peroxyacetyl nitrate Carbon dioxide Sulphur dioxide Nitric oxide Peroxyacetyl nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is very reactive and kept in kerosene? Iodine Bromine Sodium Potassium Iodine Bromine Sodium Potassium ANSWER DOWNLOAD EXAMIANS APP
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