Hi this is regarding my earlier post as to whether H2SO4 is a carboxylic acid

If it is not a carboxylic acid, what can it be?

Is it possible Sulfuric Acid?

No, H2SO4 definitely is not a carboxylic acid. Carboxylic acids are organic acids with the functional group of -COOH usually written as RCOOH. where R stands for anything else attached. H2SO4 is called a mineral acid. Other mineral acids are hydrochloric acid, nitric acid, phosphoric acid, etc. Mineral acids range from the very strong (HNO3) to the very weak (boric acid).

Of the follwoing options, what is a mineral acid?

alkyne
alkane alkene
alkyl halide
primary
alcohol
secondary alcohol
tertiary alcohol
ether

none of the above.

a mineral acid is none of those. Have you looked up those terms?

Sorry there are more options

Ketone
Aldehyde
Amide
Primary amine
Secondary amine
Tertiary amine

P.S
I have looked up all terms

none of those either.