MCQ
Which one of the following molecules has maximum dipole moment?
- A$\mathrm{NF}_3$
- B$\mathrm{CH}_4$
- ✓$\mathrm{NH}_3$
- D$\mathrm{PF}_5$

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$A$. The successive half lives of zero order reactions decreases with time.
$B$. A substance appearing as reactant in the chemical equation may not affect the rate of reaction
$C$. Order and molecularity of a chemical reaction can be a fractional number
$D$. The rate constant units of zero and second order reaction are $mol\, L ^{-1} s ^{-1}$ and $mol ^{-1} Ls ^{-1}$ respectively

