MCQ
The correct order of dipole moment is
- ✓$CH_4 < NF_3 < NH_3 < H_2O$
- B$NF_3 < CH_4 < NH_3 < H_2O$
- C$NH_3 < NF_3 < CH_4 < H_2O$
- D$H_2O < NH_3 < NF_3 < CH_4$
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$(A)$ The $pH$ of $1 \times 10^{-8}\,M\,HCl$ solution is $8$.
$(B)$ The conjugate base $H _2 PO _4^{-}$is $HPO _4{ }^{2-}$.
$(C)$ $K _{ w }$ increases with increase in temperature.
$(D)$ When a solution of weak monoprotic acid is titrated against a strong base at half neutralisation point, $pH =\frac{1}{2} pK _{ a }$
Choose the correct answer from the option given below.
${N_2}{O_4}(g) \rightleftharpoons 2N{O_2}(g),\,\,\frac{{{K_c}}}{{{K_p}}}$ is