MCQ
Which of the following has smallest size
- A$M{g^{2 + }}$
- B$N{a^ + }$
- C$A{l^{3 + }}$
- ✓$S{i^{4 + }}$
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$X \rightleftharpoons 2Y$ and $Z \rightleftharpoons P + Q,$
respectively are in the ratio of $1 : 4.$ If the degree of dissociation of $X$ is $2$ times that of $Z,$ then the ratio of total pressure $(P_1 : P_2)$ at these equilibria is : (Assume degree of dissociation for both reactions are very very small)