Which of the following statement is not true for the reaction given below?

$\left[\mathrm{Cu}\right({\mathrm{H}}_2\mathrm{O}{)}_4{]}^{2+}+<mspace\; width="1em"></mspace>4{\mathrm{NH}}_3\stackrel{}{\rightleftharpoons }\left[\mathrm{Cu}\right({\mathrm{NH}}_3{)}_4{]}^{2+}+4{\mathrm{H}}_2\mathrm{O}$

1. It is a ligand substitution reaction.

2. ${\mathrm{NH}}_3$ is a relatively strong field ligand while ${\mathrm{H}}_2\mathrm{O}$ is a weak ligand 

3. During the reaction, there is a change in colour from light blue to dark blue 

4. $\left[\mathrm{Cu}\right({\mathrm{NH}}_3{)}_4{]}^{2+}$, has a tetrahedral structure and is paramagnetic

Which among the following is incorrect?

Select the correct code of TRUE and FALSE for given statements:

(a) Peroxide ion as well as dioxygen molecule both are paramagnetic species.

(b) In set of isomers, $\left[\mathrm{Cr}\right({\mathrm{H}}_2\mathrm{O}{)}_6]{\mathrm{Cl}}_3$ and $\left[\mathrm{CrCl}\right({\mathrm{H}}_2\mathrm{O}{)}_5]{\mathrm{Cl}}_2·{\mathrm{H}}_2\mathrm{O}$, both compounds can easily loose water molecule on treatment with conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$

(c)During transformation $\mathrm{NO}\underset{}{\to }<mspace\; width="1em"></mspace>{\mathrm{NO}}^{+}$, bond length and magnetic  behaviour decreases

(d) An ether is more volatile than alcohol both having same molecular formula

(a) FFTT         (b) FTFT       (c) FTTT   (d) TFFT

The total possible coordination isomers for the following compounds respectively are:

$\left[\mathrm{Co}\right(\mathrm{en}{)}_3\left]\right[\mathrm{Cr}\left({\mathrm{C}}_2{\mathrm{O}}_4{)}_3\right]$
$\left[\mathrm{Cu}\right({\mathrm{NH}}_3{)}_4\left]\right[{\mathrm{CuCl}}_4]$
$\left[\mathrm{Ni}\right(\mathrm{en}{)}_3\left]\right[\mathrm{Co}({\mathrm{NO}}_2{)}_6$

(a) 4,4,4     (b) 2,2,2       (c) 2,2,4        (d) 4,2,4

The incorrect option among the following is:

Identify the incorrect statement among the following regarding the complex [Cr(NO₂)(NH₃)₅][Zn(SCN)₄]:

1. It exhibits coordination isomerism.

2. It exhibits optical activity.

3. It exhibits linkage isomerism

4.The IUPAC name of the compound is Pentaamminenitrito-N-chromium(III) tetrathiocyanato-S-zincate(II).

Unmatched characterstic of complex $\left[{\mathrm{PdCl}}_2\right({\mathrm{H}}_2\mathrm{O}{)}_2({\mathrm{NH}}_3{)}_2{]}^{2+}$ is :

(1) Diamagnetic                               

(2) Low spin

(3) Geometrical isomerism               

(4) Fac. and Mer. form

Which of the following statement is true?

(a) In $\left[{\mathrm{PtCl}}_2\right({\mathrm{NH}}_3{)}_2{]}^{2+}$ the cis form is optically inactive while trans form is optically active

(b) In $\left[\mathrm{Fe}\right({\mathrm{C}}_2{\mathrm{O}}_4{)}_3{]}^{3-}$ , geometrical isomerism does not exist while optical isomerism exists 

(c) In Mabcd, square planar complexes show both optical as well as geometrical isomerism

(d) In Mabcd tetrahedral complex, optical isomerism cannot be observed

The following complexes are given :

(1) $\mathrm{trans}-\left[\mathrm{Co}\right({\mathrm{NH}}_3{)}_4{\mathrm{Cl}}_2{]}^{+}$

(2) $\mathrm{cis}-\left[\mathrm{Co}\right({\mathrm{NH}}_3{)}_2(\mathrm{en}{)}_2{]}^{3+}$

(3) $\mathrm{trans}-\left[\mathrm{Co}\right({\mathrm{NH}}_3{)}_2(\mathrm{en}{)}_2{]}^{3+}$

(4) ${\mathrm{NiCl}}_4^{2-}$

(5) ${\mathrm{TiF}}_6^{2-}$

(6) ${\mathrm{CoF}}_6^{3-}$

Choose the correct code:

(a) (1),(2) are optically active, (3) is optically inactive

(b) (2) is optically active ; (1), (3) are optically inactive

(c) (4), (5) are coloured and (6) is colourless

(d) (4) is coloured and (5),(6) are colourless

Which of the following can show geometrical isomerism?

(1) \([Pt\big((NH_2-CH(CH_3)-CH(CH_3)-NH_2)_2\big]^{2+}\)

(2) \([Co(en)_2(NH_3)Cl]^{2+}\)

(3) Both (a) and (b)

(4) None of these