MCQ
For a zero order reaction, the plot of conc. $(a -x)$ $vs$ time is linear with
- A$+ve$ slope and zero intercept
- B$-ve$ slope and zero intercept
- C$+ve$ slope and non-zero intercept
- ✓$-ve$ slope and non-zero intercept
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If the absolute values of the net charge of the peptide at $pH =2, pH =6$, and $pH =11$ are $\left| z _1\right|,\left| z _2\right|$ and $\left|z_3\right|$, respectively, then what is $\left|z_1\right|+\left|z_2\right|+\left|z_3\right|$ ?

$(K_f =-1.86\,^o\,C/m)$