GATE CY 2015 Question Paper (31-Jan-2015) (Shift 1)

The point group of $I{F}_7$ is

When one CO group is replaced by $PP{h}_3$ in $[Cr(CO{)}_6]$, which one of the following statements is TRUE?

Identify X in the reaction, $[Pt(N{H}_3{)}_4{]}^{2+}+2HCl\to X$

Identify the function of hemocyanin and the metal responsible for it.

The limiting current (in $\mu A$) from the reduction of $3\times 10^{-4}MP{b}^{2+}$, using a dropping mercury electrode (DME) with characteristics, $m=3.0mg{s}^{-1}$ and $t=3s$, is
(diffusion coefficient of $P{b}^{2+}=1.2\times 10^{-5}c{m}^2{s}^{-1}$)_________________