A hydrocarbon $\left(\mathrm{R}\right)$ has a six-membered ring, in which there is unsaturation. Two alkyl groups are attached to the ring adjacent to each other. One group has three carbon atoms with branching at the first carbon atom of chain and another has four carbon atoms. The larger alkyl group has a main chain of three carbon atoms of which second carbon is substituted. What is the structure of $\text{'}\mathrm{R}\text{'}$?

A long chain alkane has the following substitutes:

$\left(\mathrm{i}\right)$ ($1-$methylpropyl) at $\mathrm{C}-5$.

$\left(\mathrm{ii}\right)$ ($2-$methylpropyl) at $\mathrm{C}-4$.

$\left(\mathrm{iii}\right)$ Tert$-$butyl at $\mathrm{C}-2$.

$\left(\mathrm{iv}\right)$ Dimethyl at $\mathrm{C}-4$ and $\mathrm{C}-5$.

The correct order of writing their names (first to last) is?

Choose the incorrect compound from the following $\mathrm{IUPAC}$ names.

Which of the following statement is incorrect with respect to the above compound?

State the $\mathrm{IUPAC}$ name of the following compound:

$3-($formyl methyl$)$$-5-($$2-$formyl ethyl$)$hexane$-1, 6-$dial

Which of the following has "carboxy" and/or "carbonitrile" in its IUPAC name?

Choose the $\mathrm{IUPAC}$ name of the above compound.