While cooking, if the bottom of the vessel is getting blackened on the outside, it means that (a) the food is not cooked completely. (b) the fuel is not burning completely. (c) the fuel is wet. (d) the fuel is burning completely.

Butanone is a four-carbon compound with the functional group : (a) carboxylic acid (b) aldehyde (c) ketone (d) alcohol

Ethane, with the molecular formula C2H6 has (a) 6 covalent bonds. (b) 7 covalent bonds. (c) 8 covalent bonds. (d) 9 covalent bonds.

What are functional groups?

Would you be able to check if water is hard by using a detergent?

What are oxidising agents?