1 . Burning of coal is a type of Heaction
2.The chemical Reaction which produces heat is known as ----
a) Endothermic chemical reaction
b) Exothermic chemical reaction
c) Decomposition Reaction
d) Neutralisation reaction
3.Which One is the correct formula of “ Ammonium chloride”
4.We apply paint on iron articles because of-
a) Good looks
b) Prevention from sunlight
c) Prevention from
rusting
5.“Number of electrons present in the last shell. ” is known as
a) Atomic No.
b) Atomic Mass
c) Valency
d) Valence electrons
Answers
Answered by
0
Explanation:
1) combination reaction..
2) a) exothermic reaction..
3) NH4CL
4) c) prevent from rusting..
5) d) valance electrons..
mark me as BRAINLEAST.........
Answered by
1
Answer:
Heyy mates.
Here is your answer
Explanation:
1) combination reaction..
2) a) exothermic reaction..
3) NH4CL
4) c) prevent from rusting..
5) d) valance electrons..
I hope this answer help you
please mark be brainliest.
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