Science Acids,Bases and Salts quiz

The chemical nature of acid is ________ in nature

• Basic

• Red

• Blue

• Acidic

What name is given to those substances which do not change the colour of either red or blue litmus paper?

• neutral

• basic

• acidic

• salts

Which one is not a property of acid

• They are sour in taste

• They do not react with ammonium salt

• They change the colour of indicators

which of the foll is acidic in nature

• limewater

• human blood

• lime juice

• antacid

Give examples of some acids and bases

(a)  

Which of the following values would represent the pH of a strong base?

• 1

• 5

• 13

• 7

Describe the process of neutralisation

(a)  

A shopkeeper has a few bottles of soft drink in his shop. But, unfortunately, these are not labelled. He has to serve the drinks on the demand of customers. One customer wants acidic drink; another wants basic and third one wants neutral drink. How will he decide which drink is to be served to whom?

(a)  

An oxide is acidic and has a pungent odour. It could be

• sulphur dioxide

• carbon dioxide

• sodium oxide

• nitrogen dioxide

Out of these gases which one is used in fire extinguishers

• SO2

• NO2

• CO2

• H2S