Q. Which one of the following contains both ionic and covalent bonds?
A) $C_{6}H_{5}Cl$
B) $H_{2}O$
C) $NaOH$
D) $CO_{2}$
Explanation
(c)
In NaOH, $Na^{+}\$and$\ OH^{-}$ ions are bonded together by ionic bond while in $OH^{-}$ ion oxygen and hydrogen atoms are bonded together by covalent bond $Na^{+}\ \lbrack O - H\rbrack^{-}$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.