Use the pH chart to determine the possible contents of each test tube shown below.
Acidic
pH
paper
рн
paper
pH
paper
EXAMPLES
Battery acid
Sulfuric acid
Lemon juice, vinegar
Orange juice, soda
Tomatoes
Meat, clean rain
Healthy lake, milk
Pure water
Sea water, eggs
Olive oil
Milk of magnesia
Ammonia
Soapy water
Bleach
Liquid drain cleaner
pH = 0
pH = 1
pH = 2
pH = 3
pH = 4
pH = 5
pH = 6
pH = 7
pH = 8
pH = 9
pH = 10
pH = 11
pH = 12
pH = 13
pH = 14
Neutral

Answer :

The possible contents in 1st test tube are meat and clean rain.

The possible content in 2nd test tube is olive oil.

The possible contents in 3rd test tube is tomatoes.

Explanation:

pH : It is defined as the negative logarithm of hydrogen ion concentration.

The main use of pH paper is to determine is a solution is acidic, basic or neutral.

The range of pH paper is 1 o 14 with different color.

If the solution is acidic then the value of pH is less than 7.

If the solution is basic then the value of pH is more than 7.

If the solution is neutral then the value of pH is equal to 7.

According to the question,

The possible contents in 1st test tube are meat and clean rain.

The possible content in 2nd test tube is olive oil.

The possible contents in 3rd test tube is tomatoes.

the answers are a and c