Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
3.0k views
in Chemistry by (69.1k points)

A mineral consists of a cubic close-packed structure formed by O2– ions where half the octahedral voids are occupied by Al3+ and one eighth of the tetrahedral voids are occupied by Mn2+. The chemical formula of the mineral is

(A)  Mn3Al2O

(B)  MnAl2O4 

(C)   MnAl4O7 

(D)  Mn2Al2O5

1 Answer

0 votes
by (73.1k points)
selected by
 
Best answer

Correct option  (B) MnAl2O4

Explanation:

No of O–2 per unit cell = 8 x 1/8  + 6 x  1/2  = 4

No of Al+3 per unit cell = 4 x  1/2  = 2

No of Mn+2 per unit cell = 8 x 1/8  = 1

MnAl2O4

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...