Q. Which pair cannot exist together in solution?
A) $NaHCO_{3}\ and\ NaOH$
B) $NaHCO_{3}\ and\ NaCl$
C) $NaHCO_{3}\ and\ Na_{2}CO_{3}$
D) $NaCl\ and\ \ Na_{2}CO_{3}$
Explanation
(c)
$\because NaHCO_{3}$ is more soluble than $Na_{2}CO_{3}$ in water.
$\therefore Na_{2}CO_{3}$ cannot exist in water along with $NaHCO_{3}.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.