Question

Q11
Pieces of copper, iron, magnesium and zinc are added to separate test-tubes containing dilute
hydrochloric acid. Which test-tube contains magnesium and dilute hydrochloric acid?
A
test tube A
test tube B
a test tube o
test tube D​

Answer 1

• A test tube c is the correct answer

Answer 2

Answer:

test tube B

Explanation:

as magnesium does not give hydrogen when added to sulphuric acid and so no effervescence is seen in test tube B