Q. For which one of the following minerals, the composition given is incorrect?
A) Glauber’s salt –$Na_{2}SO_{4}\ .10H_{2}O$
B) Borax – $Na_{2}B_{4}O_{7}\ .7H_{2}O$
C) Carnallite – $KCl\ .MgCl_{2}\ .6H_{2}O$
D) Soda ash – $Na_{2}CO_{3}$
Explanation
(b)
Borax-$Na_{2}B_{4}O_{7}\ .\ 10H_{2}O.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.