Atomic number of P=11, Q=18, R=16 and S=26
Give the formula of the compound when P combines with R ?
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Explanation:
Correct option is
D
PQ2
Element mass% Atomic mass(g) At.massmass%Integral ratio P 27.3 12 2.2751 Q 72.7 16 4.52 Empirical formula is PQ2
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