(a) Name an element which reacts with hydrogen to form a compound which is strongly acidic in water. (b) Explain why dilute hydrochloric acid cannot be concentrated by boiling beyond 22.2%.
Among the following, which element reacts with hydrogen to form a compound A and on treatment with water liberates hydrogen gas?
Fill in the blanks with suitable words :
An acid is a compound which when dissolved in water forms hydronium ions as the only ________ ions.
A base is a compound which is soluble in water contains ________ ions. A base reacts with an acid to form a ________ and water only. This type of reaction is known as ________