Gases A and B dissolve in water at $298\mathrm{K}$ with $K_H(\text{A})=2.0\times 10^4\mathrm{bar}$ and $K_H(\text{B})=8.0\times 10^4\mathrm{bar}$ (law $p=K_{H}x$). A gas mixture with partial pressures $p_A=1.0\mathrm{bar}$ and $p_B=2.0\mathrm{bar}$ is kept over water. Which statements are correct?

1. AGas A is more soluble than gas B at equal partial pressures
2. BThe mole fraction of B in solution is $2.5\times 10^{-5}$
3. CThe ratio $x_A/x_B$ in solution is $0.50$
4. DIf both partial pressures are doubled, both mole fractions in solution double