1
Question
Fill in the blanks.
(a) Phosphorus is a very
(b) Metals are
(c) Iron is
(d) Metals react with acids to produce
(a) Phosphorus is a very
(b) Metals are
(c) Iron is
(d) Metals react with acids to produce
Open in App
Solution
(a)
Phosphorus is a very reactive non-metal.
- Phosphorus is a highly reactive non-metal. So, it catches fire easily and hence used in matchsticks.
(b)
Metals are good conductors of heat and electricity.
- Metals are good conductors of electricity and heat because they allow heat and electricity to pass through them.
(C) 
Iron is more reactive than copper.
- Iron is more reactive than copper. Hence, it replaces copper from its salt solution (copper sulphate).
Iron + Coppersulphate →Iron sulphate + Copper
(d)
Metals react with acids to produce hydrogen gas.
-
The reaction of metals with acids produces hydrogen gas that burns with a ‘pop’ sound.
-
For example, magnesium metal reacts with hydrochloric acid and produces hydrogen gas.
Phosphorus is a very reactive non-metal.
- Phosphorus is a highly reactive non-metal. So, it catches fire easily and hence used in matchsticks.
Metals are good conductors of heat and electricity.
- Metals are good conductors of electricity and heat because they allow heat and electricity to pass through them.
(C)
Iron is more reactive than copper.
- Iron is more reactive than copper. Hence, it replaces copper from its salt solution (copper sulphate).
(d)
Metals react with acids to produce hydrogen gas.
-
The reaction of metals with acids produces hydrogen gas that burns with a ‘pop’ sound.
-
For example, magnesium metal reacts with hydrochloric acid and produces hydrogen gas.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
