What type of chemical reactions take place when :
(a) a magnesium wire is burnt in air ?
(b) lime-stone is heated ?
(c) silver bromide is exposed to sunlight ?
(d) electricity is passed through water ?
(e) ammonia and hydrogen chloride are mixed ?
Lakhmir Singh Chemistry Class 10
Answers
Answer:
a part
Explanation:
it is a combination reaction or oxidation reaction. Answer : The chemical reaction which takes place when Magnesium wire is burnt in air is Combination Reaction. Another type of reaction also takes place which is called Exothermic Reaction because heat or energy gets released when it is burnt in air.
Answer
b part
Explanation:
If limestone is heated strongly, it breaks down to form calcium oxide and carbon dioxide. Calcium oxide is also called quicklime. It is yellow when hot, but white when cold.
Answer
c part
Explanation
When silver bromide is exposed to sunlight, decomposition reaction takes place, which results in the formation of silver and bromide gas
Answer
d part
Explanation
when an electric current is passed through water Electrolytic decomposition takes place. This means that the water splits into its constitute elements - Hydrogen (H2) and oxygen (O2).
Answer
e part
explanation
Ammonia is Lewis base,so it reacts with HCl to form a salt known as ammonium chloride. Originally Answered: What type of chemical reaction takes place when ammonia and hydrogen chloride are mixed? NH3 is a base and HCl is an acid. When they react together it is an acid/base neutralisation reaction.