Stogs GCSE Interleaving Acids L

High pH values show solutions are:

• Strongly acidic

• Strongly alkaline

• Neutral

• Weakly acidic

In an acidic solution methyl orange is:

• Yellow

• Orange

• Red

• Blue

In an alkaline solution methyl orange is:

• Yellow

• Orange

• Red

• Blue

In an acidic solution phenolphthalein is:

• Red

• Pink

• Colourless

• Blue

In an alkaline solution phenolphthalein is:

• Red

• Pink

• Colourless

• Blue

In a neutral solution, blue litmus paper is:

• Red

• Blue

• Green

• Purple

pH measures:

• The colour of a solution.

• The concentration of H⁺ and/or OH^- ions in a solution.

• The dissociation of an acid.

• The concentration of an acid.

The pH scale is:

• Linear

• Logarithmic

A high concentration of H⁺ ions in solution will give:

• A high pH.

• A low pH.

• A negative pH.

• A medium pH.

A base is:

• A soluble alkali.

• Something containing H⁺.

• Something containing OH^-.

• A substance that reacts with an acid to form salt and water only.