NCERT Class 10 Chapter 2 Acids; Bases and Salts CBSE Board Sample Problems Very Short Answer
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Question
Give the chemical name of compound present in tooth enamel. What is the nature of compound?
Solution
Chemical Name: Nature
Calcium Phosphate: Basic
Question
Assertion: Acids should be used carefully.
Reason: All acids are corrosive.
Solution
Assertion is true and reason is the correct explanation of assertion.
Question
What do you understand by olfactory indicators?
Solution
Some indicators show a change in their odour in the presence of acids or bases, such indicators are called olfactory indicators. They are very useful for visually challenged students because such students cannot use other indicators. Clove, vanilla and onion are examples of olfactory indicators.
Question
What is the common name of the compound ? Give its anyone use.
Solution
Bleaching powder. It is used to disinfectant drinking water to make it free from germs.
Question
What is neutralization reaction?
Solution
Neutralization reaction is a reaction between an acid and base to form salt and water. It is an exothermic reaction.