Identify the product A and product B in the following set of reactions.

In the above chemical reaction sequence "$$\mathrm{A}$$" and "$$\mathrm{B}$$" respectively are

Given below are two statements : Statement (I) : $${\mathrm{S}}_{\mathrm{N}}2$$ reactions are 'stereospecific', indicating that they result in the formation of only one stereo-isomer as the product. Statement (II) : $${\mathrm{S}}_{\mathrm{N}}1$$ reactions generally result in formation of product as racemic mixtures. In the light of the above statements, choose the correct answer from the options given below :

In the given compound, the number of 2$${}^{\circ }$$ carbon atom/s is ________.

Given below are two statements : Statement I : Nitration of benzene involves the following step - Statement II : Use of Lewis base promotes the electrophilic substitution of benzene. In the light of the above statements, choose the most appropriate answer from the options given below :

Consider the above chemical reaction. Product "A" is :

${\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+}$ and ${\left[{\mathrm{CoF}}_6\right]}^{3-}$ are respectively known as :

Given below are two statements : Statement (I) : Dimethyl glyoxime forms a six-membered covalent chelate when treated with ${\mathrm{NiCl}}_2$ solution in presence of ${\mathrm{NH}}_4\mathrm{OH}$. Statement (II) : Prussian blue precipitate contains iron both in $(+2)$ and $(+3)$ oxidation states. In the light of the above statements, choose the most appropriate answer from the options given below :

Which of the following compounds show colour due to d-d transition?

Which of the following complex is homoleptic?

Given below are two statements : Statement (I) : A solution of ${\left[\mathrm{Ni}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+}$ is green in colour. Statement (II) : A solution of ${\left[\mathrm{Ni}(\mathrm{CN}{)}_4\right]}^{2-}$ is colourless. In the light of the above statements, choose the most appropriate answer from the options given below :

Consider the following complex ions $$\begin{array}{rl}& \mathrm{P}={\left[{\mathrm{FeF}}_6\right]}^{3-}\\ & \mathrm{Q}={\left[\mathrm{V}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+}\\ & \mathrm{R}={\left[\mathrm{Fe}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+}\end{array}$$ The correct order of the complex ions, according to their spin only magnetic moment values (in B.M.) is :

Yellow compound of lead chromate gets dissolved on treatment with hot $$\mathrm{NaOH}$$ solution. The product of lead formed is a :

Identity the incorrect pair from the following :

Identify from the following species in which $${\mathrm{d}}^2{\mathrm{sp}}^3$$ hybridization is shown by central atom :

Select the option with correct property -

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-baqh{text-align:center;vertical-align:top} .tg .tg-amwm{font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0lax{text-align:left;vertical-align:top} List - I (Complex ion) List - II (Electronic Configuration) (A) $$[\mathrm{Cr}({\mathrm{H}}_2\mathrm{O}{)}_6{]}^{3+}$$ (I) $$t_{2g}{}^2{e}_g^0$$ (B) $${\left[\mathrm{Fe}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{3+}$$ (II) $$t_{2g}{}^3{e}_g{}^0$$ (C) $${\left[\mathrm{Ni}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+}$$ (III) $$t_{2g}{}^3{e}_g{}^2$$ (D) $${\left[\mathrm{V}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{3+}$$ (IV) $$t_{2g}{}^6{e}_g^2$$ Choose the correct answer from the options given below:

The correct statements from following are: A. The strength of anionic ligands can be explained by crystal field theory. B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds. C. The hybridization involved in formation of $${\left[\mathrm{Ni}(\mathrm{CN}{)}_4\right]}^{2-}$$ complex is $${\mathrm{dsp}}^2$$. D. The number of possible isomer(s) of cis- $${\left[{\mathrm{PtCl}}_2(\mathrm{en}{)}_2\right]}^{2+}$$ is one Choose the correct answer from the options given below:

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List - I (Substances) List - II (Element Present) (A) Ziegler catalyst (I) Rhodium (B) Blood Pigment (II) Cobalt (C) Wilkinson catalyst (III) Iron (D) Vitamin $${\mathrm{B}}_{12}$$ (IV) Titanium Choose the correct answer from the options given below:

In which one of the following metal carbonyls, $$\mathrm{CO}$$ forms a bridge between metal atoms?