Which class of compunds has the general formula r-o-r

R-O-R is the general formula for Symmetrical Ethers,in which both alkyl groups attached on oxygen are same .

Explanation:

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"a connection, a bond or common feeling between two people", or as a chemical process it stimulates love or sexual attraction

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."