Explain different types of isomerism in amines. - Vidyadip

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Explain different types of isomerism in amines.

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Account for the following:

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Chromates change their colour when kept in an acidic solution.
$Zn, Cd$, Hg are considered as d-block elements but not as transition elements.

Calculate the spin-only moment of $Co^{2+} (Z = 27)$ by writing the electronic configuration of $Co$ and $Co^{2+}.$

Match the terms given in Column I with the units given in Column II.

	Column I		Column II
i.	$\text{K}$	a.	$\text{I}\times\text{t}$
ii.	$\wedge_{\text{m}}$	b.	$\frac{\wedge_{\text{m}}}{\wedge^\circ_\text{m}}$
iii.	$\alpha$	c.	$\frac{\text{k}}{\text{c}}$
iv.	$\text{Q}$	d.	$\frac{\text{G}^*}{\text{R}}$

Three electrolytic cells A, B, C containing solutions of ZnSO₄, AgNO₃ and CuSO₄, respectively are connected in series. A steady current of 1.5 amperes was passed through them until 1.45 g of silver deposited at the cathode of cell B. How long did the current flow? What mass of copper and zinc were deposited?

Indicate the types of isomerism exhibited by the following complexes and draw the structures for these isomers:
i. $\ce{k \left[ Cr \left( H _2 O \right)_2\left( C _2 O _4\right)_2\right]}$
ii. $\ce{\left[ Co ( en )_3\right] Cl _3}$
iii. $\ce{\left[ Co \left( NH _3\right)_5\left( NO _2\right)\left( NO _3\right)_2\right]}$
iv. $\ce{ \left [ Pt ( NH _3) ( H _2 O ) Cl _2\right].}$

Describe the standard hydrogen electrode with diagram.

All energetically effective collisions do not result in a chemical change. Explain with the help of an example.

A steady current of 2 amperes was passed through two electrolytic cells X and Y connected in series containing electrolytes $FeSO_{4}$ and $ZnSO_{4}$ until 2.8 g of Fe deposited at the cathode of cell X. How long did the current flow? Calculate the mass of Zn deposited at the cathode of cell Y. (Molar mass: $Fe = 56 g mol^{-1}, Zn = 65.3 g mol^{-1}, 1 F = 96500 C mol^{-1}$)

Following are the transition metal ions of 3d series:

$Ti^{4+}, V^{2+}, Mn^{3+}, Cr^{3+}$
$($Atomic numbers : $Ti = 22, V = 23, Mn = 25, Cr = 24)$
Answer the following:

Which ion is most stable in an aqueous solution and why?
Which ion is a strong oxidising agent and why?
Which ion is colourless and why?

Complete the following equations:

$2\text{ }\text{MnO}_4^-+16\text{ }\text{H}^++5\text{ }\text{S}^{2-}\xrightarrow{\text{ }\text{ }\text{ }\text{ }\text{ }\text{ }\text{ }\text{ }\text{ }\text{ }\text{ }}$

$\text{KMnO}_4\xrightarrow{\text{ }\text{ }\text{ }\text{ }\text{ }\text{heat}\text{ }\text{ }\text{ }\text{ }\text{ }}$

State the reactions and reaction conditions for the following conversions:
i. Benzene diazonium chloride to nitrobenzene.
ii. Aniline to benzene diazonium chloride.
iii. Ethylamine to methylamine.

i. Give reasons :
a. Although $- \ce{NH2}$ group is o/p directing in electrophilic substitution reactions, yet aniline, on nitration gives good yield of $m-$nitroaniline.
b. $(\ce{CH 3)2NH}$ is more basic than $(\ce{CH3)3N}$ in an aqueous solution.
c. Ammonolysis of alkyl halides is not a good method to prepare pure primary amines.
ii. Distinguish between the following:
a. $\ce{CH 3 CH 2 NH 2}$ and $(\ce{CH 3 CH 2)2NH}$
b. Aniline and $\ce{CH3NH2}$