Separate the following into substances having pH values above and below 7. How do these influence litmus paper? Lemon juice Solution of washing soda Toothpaste Vinegar Stomach juices

Substances Acid/base pH value Litmus test result Lemon juice Acid Less than 7 Turns blue litmus red Solution of washing soda Base Greater than 7 Turns red litmus blue Toothpaste Base Greater than 7 Turns red litmus blue Vinegar Acid Less than 7 Turns blue litmus red Stomach juices Acid Less than 7 Turns blue litmus red

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Syllabus

Separate the following into substances having pH values above and below 7. How do these influence litmus paper? (i) Lemon juice (ii) Solution of washing soda (iii) Toothpaste (iv) Vinegar

Question

Separate the following into substances having pH values above and below 7. How do these influence litmus paper?

Lemon juice
Solution of washing soda
Toothpaste
Vinegar
Stomach juices

Short Answer

Solution

Substances	Acid/base	pH value	Litmus test result
Lemon juice	Acid	Less than 7	Turns blue litmus red
Solution of washing soda	Base	Greater than 7	Turns red litmus blue
Toothpaste	Base	Greater than 7	Turns red litmus blue
Vinegar	Acid	Less than 7	Turns blue litmus red
Stomach juices	Acid	Less than 7	Turns blue litmus red