Question

please solve pleasse b wala

Answer 1

The reason why non-metals do not displace hydrogen from dilute acids is because unlike metals, non-metals do not have a tendency to lose electrons but to gain electrons. Metals have a tendency to lose electrons. These electrons, which are readily lost by reactive metals like sodium, potassium etc are accepted by hydrogen ions of the acids, reducing them to hydrogen gas (H2). 2 H+ + 2e- → H2 However, non-metals do not lose electrons readily, because of which they do not displace hydrogen from acids. Another important point to note is that not all metals will displace hydrogen from acids. Only those metals which are reactive than hydrogen will displace H2 from acids.

Answer 2

Ans : Non metals do not react with dilute acids .In other words non metals do not displace hydrogen from acids .

Examples for non metals like carbon, Sulphur and phosphorus do not react with dilute hydrochloric acid (HCl )or dilute sulphuric acid(H2SO4) to produce hydrogen gas .

In order to displace hydrogen ions of an acid and convert them into hydrogen gas, electrons should be supplied to hydrogen ions of the acid.

Now, a non metal being itself and acceptor of electrons cannot give electrons to hydrogen ions of the acids to reduce them to hydrogen gas and hence the non metals are not able to displace hydrogen ions from acids to form hydrogen gas

That if non metals like carbon ,sulphur or Phosphorus are put into a test tube containing dilute sulphuric acid then no hydrogen gas is evolved .