Question

Sintered glass filters are made from particles.

• A. Diatomaceous earth
• B. Sodalime glass
• C. Borosilicate glass
• D. Aluminium alkali silicate

Hint:

Sintered = Borosilicate. It's the "strong" glass used for high-end lab filters.

Answer 1

The Correct Option is C

Step 1: Concept
Sintered glass filters (or Fritted glass) are used for laboratory filtration, especially when chemical resistance is required.

Step 2: Meaning
Sintering is the process of heating powdered glass until the particles partially fuse together to form a porous disc.

Step 3: Analysis
To ensure the filter is resistant to thermal shock and chemical attack, high-quality borosilicate glass is used. Borosilicate glass (like Pyrex) has a low coefficient of expansion and high durability.

Step 4: Conclusion
Sintered glass filters are manufactured specifically from borosilicate glass particles.

Final Answer: (C)