A student spills dilute sulfuric acid on the laboratory bench. Which substance is the BEST choice for making the spill safe?

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Question

A student spills dilute sulfuric acid on the laboratory bench. Which substance is the BEST choice for making the spill safe?

Accepted Answer

Powdered sodium hydrogen carbonate — Award 1 mark. It is a mild base that neutralises the acid and fizzes visibly while doing so, and any excess is harmless. Adding more acid makes matters worse, and a concentrated alkali is as corrosive as the acid it replaces.

Answer

Powdered sodium hydrogen carbonate

Answer

Concentrated sodium hydroxide

Answer

A dry cloth used on its own

Answer

More dilute sulfuric acid

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