Which of the following statement(s) is/are CORRECT?
I. Bases are soapy to touch.
II. Bases generate OH
−
ions.
III. Metal oxides dissolve in water to form Acidic solution.
- AOnly I and II
- BOnly I and III
- COnly II and III
- DAll I, II and III
Solution & Step-by-step Explanation
Let us analyze each statement:
Statement I: Bases are characteristically slippery or soapy to touch. This is correct.
Statement II: According to the Arrhenius definition, bases dissociate in an aqueous solution to produce hydroxide (OH
−
) ions. This is correct.
Statement III: Most metal oxides are basic in nature and react with or dissolve in water to form alkaline (basic) solutions, not acidic solutions (non-metal oxides form acidic solutions). This statement is incorrect.
Therefore, only statements I and II are correct.
Statement I: Bases are characteristically slippery or soapy to touch. This is correct.
Statement II: According to the Arrhenius definition, bases dissociate in an aqueous solution to produce hydroxide (OH
−
) ions. This is correct.
Statement III: Most metal oxides are basic in nature and react with or dissolve in water to form alkaline (basic) solutions, not acidic solutions (non-metal oxides form acidic solutions). This statement is incorrect.
Therefore, only statements I and II are correct.