Q. The formula of mineral borax is
A) $Na_{2}B_{4}O_{7}$
B) $Na_{2}B_{4}O_{7}.4H_{2}O$
C) $Na_{2}B_{4}O_{7}.5H_{2}O$
D) $Na_{2}B_{4}O_{7}.10H_{2}O$
Explanation
(d)
The mineral borax is $Na_{2}B_{4}O_{7}.10H_{2}O$. It is used to detect coloured basic radicals in inorganic salt analysis.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.