100% H2SO4 at 30°C can't be stored in a vessel made/lined with ___________________?
Correct answer: C. Aluminium, tin and rubber
- A. Cast iron and high silicon iron
- B. Mild steel and stainless steel
- C. Aluminium, tin and rubber
- D. Teflon, glass and porcelain
Explanation
Aluminium, tin and rubber are unsuitable for storing 100% sulphuric acid at 30°C because the acid can attack or damage these materials. Glass, porcelain, Teflon and suitable iron-based materials provide better resistance under the stated conditions.
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