MCQ
Which of the following mixtures forms an acid buffer
- A$NaOH + HCl$
- ✓$C{H_3}COOH + C{H_3}COONa$
- C$N{H_4}OH + N{H_4}Cl$
- D${H_2}C{O_3} + {(N{H_4})_2}C{O_3}$
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$(I)\, (CH_3)_2P(CF_3)_3$ is non-polar and $(CH_3)_3P(CF_3)_2$ is polar molecule
$(II)\, CH_3 \widehat{P} CH_3$ bond angles are equal in $(CH_3)_3P(CF_3)_2$ molecule
$(III)\,PF_3$ will be more soluble in polar solvent than $SiF_4$