Which general formula represents the functional group in a carboxylic acid? roh rcoor rcooh rcho

Answer : The correct option is, RCOOH

Explanation :

A carboxylic acid is a class of an organic compound which contain a functional group with (-COOH) i.e R-COOH (R is an alkyl group)

In R-COOH functional group, a carbon atom is bonded to an oxygen atom with double bond and a hydroxyl group with single bond. And the fourth bond links the carbon atom to an alkyl group, (R) or a hydrogen atom.

Examples of carboxylic acids are ethanoic acid,, propanoic acid,

Therefore, the correct answer is, RCOOH

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.