Question

1. Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?
(a) magnesium (b) aluminium (c) iron (d) copper

Answer 1

Answer:copper

Explanation: According to the reactivity series of metals Magnesium iron and aluminium cones above hydrogen that means they are more reactive than hydrogen but copper comes under hydrogen i.e. it is less reactive than hydrogen hence, copper is not able to replace hydrogen from dilute hydrochloric acid.

Answer 2

copper can never react with dilute hydrochloric acid to liberate hydrogen.

Option d

Explanation:

• This is because of the reactivity of the copper

• copper is below hydrogen in the reactivity series of the metal. As a result of this it cannot displace hydrogen from the acid. As a result of this does metal seated below hydrogen in the the reactivity series cannot react with dilute acid to form hydrogen. All the other metals are above hydrogen in the metal reactivity series and as a result of this day of the capability to produce hydrogen.

To know  more about metal reactivity series,

why hydrogen is placed in reactivity series of metal - Brainly.in

https://brainly.in/question/4325053