Question Text
Question 2 :
Articles made of metals produce ringing sound when struck hard. True or False
Question 4 :
Name the major non-metals which are present in fertilisers and enhance the growth of plants.
Question 11 :
What happens when dilute sulphuric acid is poured on a copper plate?
Question 12 :
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?
Question 13 :
Metals react with acids and produce metal salts and hydrogen gas. Generally, non-metals do not react with acids.
Question 15 :
Metals react with acids and produce hydrogen gas that burns with a ‘pop’ sound?
Question 16 :
Which metals are soft and can be cut with a knife?
Question 17 :
What is the property of metals by which they can be beaten into thin sheets is called?
Question 19 :
Which of the following property is not responsible for copper to be used as electrical conduction wires?
Question 20 :
Why Immersion rods for heating liquids are made up of metallic substances?