NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- General Principles and Processes of Isolation of Metals
NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals
Which of the following mineral does not contain Al.
Which of the following mineral does not contain
Options
- ACryolite
- BMica
- CFeldspar
- DFluorspar
Correct answer
D. Fluorspar
Step-by-step solution
Fluorspar ( \text{C}\text{a}{\text{F}_{2} ), Cryolite ( \text{N}{\text{a}_{3}\text{A}\text{l}{\text{F}_{6} ),
Feldspar ( \text{K}\text{A}\text{l}\text{S}{\text{i}_{3}{\text{O}_{8} ), mica ( {\text{K}_{2}\text{O}. 3\text{A}{\text{l}_{2}{\text{O}_{3}. 6\text{S}\text{i}{\text{O}_{2}. 2{\text{H}_{2}\text{O} )
Feldspar ( \text{K}\text{A}\text{l}\text{S}{\text{i}_{3}{\text{O}_{8} ), mica ( {\text{K}_{2}\text{O}. 3\text{A}{\text{l}_{2}{\text{O}_{3}. 6\text{S}\text{i}{\text{O}_{2}. 2{\text{H}_{2}\text{O} )