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Percent Composition of Elements Questions and Answers PDF Download eBook
MCQ: In Calcium Chloride, the percentage composition of Calcium is
MCQ: Products of reaction CuO + HNO3 → are
- Cu2NO3 + H2O
- Cu(NO3)2 + H2O
- Cu(NO3)2 + H2
- Cu(NO2)4 + H2
MCQ: Extra stability is gained in the third shell if the number of electrons is
MCQ: Many catalysts are
- noble gases
- transition metals
- inert gases
MCQ: Consider the equation ZnO + NaOH + H2O → Na2Zn(OH)4. Moles of H2O required to balance the equation would be