Compare the following chemical properties of metals and non metals.
a] Formation of ions.
b] Action with dilute acids.
c] Action with hydrogen.
Answers
Answer:
ANSWER
Metals Non-metals
Metals are electro-positive. Non-metals are electronegative.
Metals reacts with oxygen to form basic oxides.
4Na+O
2
→2Na
2
O
Non-metals react with oxygen to form neutral or acidic oxide.
C+O
2
→CO
2
Metal oxides and hydroxides bonds have ionic bonds. Non-metal oxides and hydroxides have covalent bonds.
Metals react with water to form hydroxide and hydrogen.
2Na+2H
2
O→2NaOH+H
2
Non-metals do not react with water.
Metals react with dilute acids to form salt and H
2
. Non-metals do not react with dilute acid and they can not displace hydrogen.
Metals react as reducing agent by donating electrons.
Na→Na
+
+e
−
Non-metals are oxidizing agents that can gain the electrons.
Cl
2
+e
−
→Cl
−
Explanation:
Answer:
The industries release pollutants like sulphur dioxide and nitrogen oxide. These gases react with the water vapor present in the atmosphere to form sulphuric acid and nitric acid. These come down with the rain, making the rain acidic. Acid rain is harmful to us because it destroys buildings and damages crops and trees
Examples :
Affects the monuments like Taj Mahal.
Spoils the growth of plants. • Causes irritation of eyes in human beings