Question

Acid + Metal → Salt + ………………..complete the statement with correct answer ​

Answer 1

Answer:

Hydrogen gas

Explanation:

When a metal reacts with a acid it gives a salt and Hydrogen gas

Answer 2

The chemical reaction is :

Metal + Acid → Salt + Hydrogen gas.

When metal reacts with acids :- This reaction taken place.

Take samples of Iron, Zinc, Copper, Sulphur, Aluminium, Carbon, Magnesium, Iodine in separate test tubes.

Add 5ml of dilute hydrochloric acid to each ofthe testtubes with the help of a dropper.

Observe the reactions.

If you find no reaction, heat the test tube gently$.$

If you still see no reaction, then add 5 drops ofconc. Hydrochloric acid.

Now bring a burning Match stick near the mouth of the test tube and observe what happens.

We observe that a colourless gas comes out from some of the test tubes.

The burning match stick puts off with a pop sound.

This sound indicates the presence of hydrogen.

Thus, we can say that when some metals react with acids, they liberate Hydrogen gas.

The chemical reaction is :

Metal + Acid → Salt + Hydrogen gas

In the samples taken, Iron, Zinc, Copper, Aluminium and Magnesium are metals and Sulphur, Carbon and Iodine are non-metals.

• Please remember that Copper does not react with Hydrochloric acid.

So, Hydrogen gas is released from those test tubes in which metals like Iron, Zinc, Aluminium and Magnesium are taken.

Non-metals usually do not react with acids.