STD 11 - 8.2 Organic chemistry isomerism — JEE STD 11 Science — Question

How many geometrical isomers of this compound are possible ?

Where $A$ is $PCl^+_4$ while $B$ is $PCl^-_ 6$

Which of the following statement is INCORRECT :

$(I)$ $B$ to $A$ involvement of number of $d-$orbital in hybridization increases

$(II)$ $A$ to $B$ precentage of $p-$character in $P-Cl$ bond increases

$(III) $ Number of covalent bond in $A$ and $B$ are same

$(IV)$ $B$ is product of Lewis acid-base interaction which is associated with super octet molecule only

$\mathrm{A}+\mathrm{B} \rightarrow \mathrm{C}$ (Reaction 1$)$

$\mathrm{P} \rightarrow \mathrm{Q}$ (Reaction $2$)

The ratio of the half life of Reaction $1$ : Reaction $2$ is $5: 2$. If $t_1$ and $t_2$ represent the time taken to complete $2 / 3^{\text {dd }}$ and $4 / 5^{\text {dd }}$ of Reaction $1$ and

Reaction $2$, respectively, then the value of the ratio $\mathrm{t}_1: \mathrm{t}_2$ is . . . .$\times 10^{-1}$ (nearest integer).

[Given: $\log _{10}(3)=0.477$ and $\log _{10}(5)=0.699$ ]

$I :$ form sets of compounds which display different oxidation states of the metal

$II :$ form coloured ions in solution

$III :$ burn vigorously in oxygen

$IV :$ act as catalyst