Toothpaste is generally of which nature?
Answer and explanation
Correct answer: Mildly basic (हल्का क्षारीय)
The governing concept is neutralisation of acids by bases. Acids produced by bacteria in the mouth can attack tooth enamel. Toothpaste is generally mildly basic, so it helps neutralise or reduce some of this acidity during brushing. Therefore option A is correct. Strongly acidic toothpaste would worsen the chemical attack, whereas “neutral gas” is not a suitable description of toothpaste and metallic refers to a material property unrelated to its cleaning role.
Frequently asked questions
What is the correct answer to this question?
Mildly basic (हल्का क्षारीय)
Why is this the correct answer?
The governing concept is neutralisation of acids by bases. Acids produced by bacteria in the mouth can attack tooth enamel. Toothpaste is generally mildly basic, so it helps neutralise or reduce some of this acidity during brushing. Therefore option A is correct. Strongly acidic toothpaste would worsen the chemical attack, whereas “neutral gas” is not a suitable description of toothpaste and metallic refers to a material property unrelated to its cleaning role.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
