The bond between two successive nucleotides in RNA is

The correct answer is Option (4) → Phosphodiester bond

Option (4) Phosphodiester bond — Correct. In a polynucleotide chain such as RNA, two successive nucleotides are linked by a 3′-5′ phosphodiester bond: the phosphate joins the 3′ carbon of one sugar to the 5′ carbon of the next. The N-glycosidic bond, in contrast, links the base to the sugar within a nucleotide.

NCERT Extract:
Structure of Polynucleotide Chain – “… When a phosphate group is linked to OH of 5’ C of a nucleoside through phosphoester linkage, a corresponding nucleotide (or deoxynucleotide depending upon the type of sugar present) is formed. Two nucleotides are linked through 3’-5’ phosphodiester linkage to form a dinucleotide.”