Chemistry Ruby and sapphire are oxides of Aluminium Tin Iron Copper Aluminium Tin Iron Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Burning pyrites ore gives out Sulphur dioxide gas Nitric oxide gas Carbon dioxide gas Nitrogen dioxide gas Sulphur dioxide gas Nitric oxide gas Carbon dioxide gas Nitrogen dioxide gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is most electronegative Tin Lead Silicon Carbon Tin Lead Silicon Carbon 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
Chemistry Hardest allotrope of carbon is Lamp black Coke Graphite Diamond Lamp black Coke Graphite Diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a nitrogenous fertilizer ? Ca(CN)2 CaCN2 NH4NO3 Urea Ca(CN)2 CaCN2 NH4NO3 Urea ANSWER DOWNLOAD EXAMIANS APP
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