An aqueous solution turns red litmus solution blue. Excessaddition of which of the following solution would reverse thechange?(a) Baking powder(b) Lime(c) Ammonium hydroxide solution(d) Hydrochloric acid

Aqueous solution of which of the following salts can turn red litmus blue?Only one correct answerA.Aluminium chlorideB.Potassium nitrateC.Sodium acetateD.Sodium sulphate

A sample of soil is mixed with water and allowed to settle. Theclear supernatant solution turns the pH paper yellowish-orange.Which of the following would change the colour of this pH paperto greenish-blue?(a) Lemon juice(b) Vinegar(c) Common salt(d) An antacid

Chemistry I22) Arrange these solutions in order of decreasing acidity. a) 0.1M NaOH b) 0.1M HCl c) 0.1M ammonium chloride d) 0.1M sodium ethanoate? b, c, a, d c, b, d, a b, d, c, a b, c, d, aPrevious Question Next QuestionDo not use the 'Forward' or 'Back' button on your browser.

Which substance, when added in excess, would fully react with the acid without leaving an alkaline solution? A aqueous ammonia B aqueous sodium hydroxide C calcium carbonate D water

Choose the answer that represents a chemical change. *Dissolving salt in waterTearing up a receiptBurning your old homeworkMixing food coloring in water