Question:
The specific gravity of Alumina is
The specific gravity of Alumina is
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Alumina \((Al_2O_3)\) has specific gravity close to \(4.0\).
Updated On: May 7, 2026
- \(3.0\)
- \(4.0\)
- \(2.5\)
- \(5.0\)
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The Correct Option is B
Solution and Explanation
Concept:
Specific gravity is the ratio of the density of a substance to the density of water at a standard temperature.
Step 1: Alumina is aluminium oxide: \[ Al_2O_3 \]
Step 2: Alumina is a dense ceramic oxide with high hardness, high melting point, and good chemical stability.
Step 3: The specific gravity of alumina is approximately: \[ 3.9 \text{ to } 4.0 \]
Step 4: Among the given options, the nearest and correct value is: \[ 4.0 \] Therefore, the correct answer is: \[ \boxed{4.0} \]
Step 1: Alumina is aluminium oxide: \[ Al_2O_3 \]
Step 2: Alumina is a dense ceramic oxide with high hardness, high melting point, and good chemical stability.
Step 3: The specific gravity of alumina is approximately: \[ 3.9 \text{ to } 4.0 \]
Step 4: Among the given options, the nearest and correct value is: \[ 4.0 \] Therefore, the correct answer is: \[ \boxed{4.0} \]
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