Amines Test - 5...

Which of the following forms unstable diazonium ion when treated with $$NaNO_{2}$$ in aqueous $$HCl$$?

In the reaction series: $${ C }_{ 6 }{ H }_{ 5 }Cl\xrightarrow [Cu _{ 2 }O,\: 200^oC ]{NH_3} X; X\xrightarrow [ { 0-5 }^{ 0 }C ]{ { HNO }_{ 2 } } Z; X+Z\rightarrow A$$, the number of $$\sigma $$ and $$\pi $$ bonds in $$A$$ are:

The increasing order of basic strength for the following compounds is:
(I) $$CH_{3}-CH_{2}-NH_{2}$$
(II) $$CH_{3}-NH-CH_{3}$$
(III) $$CH_{3}-NH-Ph$$
(IV) $$CH_{3}-NH-CHO$$

The product $$U$$ is:

The correct basicity order of various atoms is :

The correct order of basicity of the above compounds is given.
Identify the correct statement(s).

Which compound does not give positive test in Lassaigne's test for nitrogen?

Which of the following is weakest base?

The following product(s) will be obtained from the above reaction: