Chemistry · May / June 2018 · Paper 11 · Question 22
5070The characteristic properties of acids and bases
A solution of W has the following properties. ● When added in excess to solid ammonium chloride, a gas is given off that turns damp red litmus paper blue. ● When added in excess to a solution of pH 3, the resulting solution has a pH of 13. What is W?
- Aa strong acid
- Ba strong base
- Ca weak acid
- Da weak base
As printed in the paper
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Correct answer: B. a strong base
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