Is Sulfuric acid -- H2SO4 ----- a carboxylic acid?

yes

Is chloroethane an alkane?

Thanks

NO it is NOT a carboxylic acid because instead of a -COOH it has a SOOH

yes it is an alkane...it even has a

-ane ending.

I would call chloroethane an alkyl chloride. If alkanes are defined as hydrocarbons, and this compound also has Cl, then it is not an alkane.

Hm..so then the alkyl halide is a derivative of an alkane. (slaps forehead for forgetting this)

Yes, alkyl halides are made from alkanes (at least they are sometimes).