Q. A white substance having alkaline nature in solution is
A) ${NaNO}_{3}$
B) ${NH}_{4}Cl$
C) ${Na}_{2}{CO}_{3}$
D) $Fe_{2}O_{3}$
Explanation
(c)
${Na}_{2}{CO}_{3}$, on hydrolysis gives alkaline solution as the solution contains strong base and weak acid.
${Na}_{2}{CO}_{3}\ \overset{2H_{2}O}{\rightarrow}\ 2NaOH\ \ \ \ \ \ + \ \ \ \ \ \ H_{2}{CO}_{3}$
white strong base weak acid
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.