Question

Which of the following compounds contain(s) no covalent bond(s)?
KCI, PH3, O2, B2H6, H2SO4
(1) KCI, B2H6
(2) KCI, B2H6, PH3
(3) KCI, H2SO4
(4) KCI​

Answer 1

your answer is d KCl since it contains a metal and a nonmetal and the bond existing between them is ionic bond

hope this helped you!!