Chemical Reactions and Equations

Question-1

Which of the given statements about the reaction below are incorrect?

a. Lead is getting reduced

b. Carbon dioxide is getting oxidised

c. Carbon is getting oxidised

d. Lead oxide is getting reduced

(i) (a) and (b)

(ii) (a) and (c)

(iii) (a), (b) and (c)

(iv) all

Solution:

i) (a) and (b)

Question-2

The above reaction is an example of a

(i). Combination reaction

(ii). Double displacement reaction

(iii). Decomposition reaction

(iv). Displacement reaction

Solution:

(iv) Displacement reaction

Question-3

What happens when dilute hydrochloric acid is added to iron fillings? Tick the correct answer.

a. Hydrogen gas and iron chloride are produced

b. Chlorine gas and iron hydroxide are produced

c. No reaction takes place

d Iron salt and water are produced

chemical reactions and equations