Acid and Base

What is the name of the reaction when an acid react with alkali?

• Displacement
• Neutralization
• Precipitation

What is the definition of an acid?

• Acid which can ionises in water
• substance that ionises in water to produce hydrogen ion
• substance that ionises to produce hydroxide ion

Which of these acids, are strong acid?

• CH₃COOH
• KOH

Is vinegar is an acid or alkali?

• Acid
• Alkali

When sulphuric acid is reacted with copper(II) oxide, a salt and water will form. Name the salt formed.

• Copper(II) hydroxide
• Copper(II) sulphate
• Sulphuric salt

Which chemical equation is correct?

• 2HCl + MgCO₃ --> MgCl₂ + CO₂ + H₂O
• H₂SO₄ + 2Fe --> FeSO₄ + H₂
• HCl + ZnO --> ZnCl₂ + H₂

An alkali that ionises completely in water to produce a higher concentration of hydroxide ion. 
This statement is referring to.. 

• Alkali
• Strong alkali
• Weak alkali

Which of these example, is a weak alkali?

• Potassium hydroxide
• Ammonia solution
• Sodium hydroxide

In an experiment, a red litmus paper in dip into a solution. It turns to blue. This indicates that the solution is..

• Acid
• Alkali

A drop of nitric acid is put in methylbenzene. A piece of blue litmus paper is dip into the solution. The litmus paper does not change to red. Explain why.

• Methylbenzene cannot react with the acid
• The is no freely moving ion H⁺