Polyfunctional group

${\mathrm{ClCH}}_2\mathrm{CH}\left(\mathrm{OH}\right){\mathrm{CH}}_2{\mathrm{COCH}}_2{\mathrm{NO}}_2$ has the principal functional group:

The prefix name of an aldehyde group in IUPAC system is

The principal functional group present in the above compound is:

The $\mathrm{IUPAC}$ name of above compound is:

The $\mathrm{IUPAC}$ name of the above compound is

Match the compounds in column-I with IUPAC name in column-II.

Column-I	Column-II
(a) $\mathrm{OHC}-\mathrm{COOH}$	(p) $1-$Aminomethanamide
(b)	(q) Formyl methanoic acid
(c) ${\mathrm{NH}}_2{\mathrm{CONH}}_2$	(r) $4-$Hydroxy$-4-$methylpentan$-2-$one

Number of functional groups present in the above compound is (include repetition of the same functional group too):

The correct IUPAC name of   is

In the above compound, the functional groups present are:

The correct IUPAC name of the above compound is:

The structure of the compound whose IUPAC name is $3-$Ethyl$-2-$hydroxy$-4-$methylhex$-3-$en$-5-$ynoic acid is 

Which of the following compound uses $1, 3$ as a set of locant (for prefix) in its $\mathrm{IUPAC}$ name?

Which of the following cannot be used for $—{\mathrm{CONH}}_2$?

Identify the total number of different functional groups in the above compound.

Which of the following sets contains names always used as a secondary suffix?

Which of the statement is correct regarding the above compound?