Question

Observe the following statements:
(i) The green coating on copper and black coating on silver are examples of corrosion.
(ii) A balanced chemical equation follows the law of conservation of mass.
(iii) Burning of crackers is a reduction process of a variety of chemicals.
(iv) The reaction between barium hydroxide and ammonium chloride is an example of an endothermic reaction.
Which of the following options is correct?
(a) All are true
(b) All are false
(c) Only(iv) is false
(d) Only (iii) is false​

Answer 1

all are true statements..

Answer 2

Answer:

a )all answers are true i think answer is uses for you