MCQ
Coinage metals are present in
- A$s-$ block
- ✓$d-$ block
- C$p-$ block
- D$f-$ block
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$A_{(g)} \longrightarrow B_{(g)} + C_{(g)}$
The initial pressure of the system before deomposition of $A$ was $P_i$. After time $'t'$ total pressure of the system increased by $x\, units$ and become $'P_t'$. The rate constant $k$ for reaction is given as
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 $\left|z_1\right|+\left|z_2\right|+\left|z_3\right|$ ?