Chapter:- 1. chemical reactions and equations
Acids, Bases and Salts textual questions Textual Questions 1. Which of the statements about the reaction below are incorrect?(1 mark) 2PbO(s) + C(s) →2Pb(s) + CO2(g) (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 Ans:- (i) is correct. Explanation : The statements (a) and (b) are incorrect 2. Fe 2 O 3 + 2Al → Al 2 O 3 + 2Fe (1 mark) The above reaction is an example of a (a) combination reaction. (b) double displacement reaction. (c) decomposition reaction. (d) displacement reaction. Ans: - (d). Explanation : This is an example of displacement reaction...