NDA 2025
- Exam
- NDA
- Year
- 2025
- Subject
- General Ability
- Chapter
- General Studies
NDA 2025 · General Ability · General Studies
Consider the following statements with reference to Feldspar...
Consider the following statements with reference to Feldspar mineral:
1. Half of the earth's crust is composed of feldspar
2. It has light cream to salmon pink colour
3. Magnesium is a common element in all types of feldspar
Which of the statements given above is/are correct?
1. Half of the earth's crust is composed of feldspar
2. It has light cream to salmon pink colour
3. Magnesium is a common element in all types of feldspar
Which of the statements given above is/are correct?
Options
- A1 only
- B1 and 2 only
- C2 and 3 only
- D1, 2 and 3
Correct answer
B. 1 and 2 only
Step-by-step solution
Feldspar is the most abundant mineral group, making up about half of the Earth's crust. Thus, statement 1 is correct.
Feldspar minerals typically exhibit colours ranging from white and light cream to salmon pink. Thus, statement 2 is correct.
Feldspars are primarily aluminosilicates of potassium, sodium, and calcium. Magnesium is not a common element in feldspar. Thus, statement 3 is incorrect.
Therefore, only statements 1 and 2 are correct.
Answer: 1 and 2 only
Feldspar minerals typically exhibit colours ranging from white and light cream to salmon pink. Thus, statement 2 is correct.
Feldspars are primarily aluminosilicates of potassium, sodium, and calcium. Magnesium is not a common element in feldspar. Thus, statement 3 is incorrect.
Therefore, only statements 1 and 2 are correct.
Answer: 1 and 2 only