Question

give reason: no gas is released when sulphur is added to dilute HCl

Answer 1

Chlorine is much more reactive than suplhur. hence sulphur cannot replace chlorine from HCL and produce hydrogen gas.

Answer 2

ANSWER:

No gas is released when sulphur is added with dilute HCl because chlorine is more reactive than sulphur.

EXPLANATION:

Sulphur appears much below chlorine in the reactivity table and cannot displace chlorine from dilute HCl. Chlorine being more reactive than sulphur does not allow sulphur to replace it from the compound.  

When sulphur is added to dilute HCl, no reaction takes place and therefore there is no formation of any products. Sulphur does not have the capability to replace chlorine and form hydrogen gas.