Question

. In order to carry out the decomposition reaction of water, a student passes electric
current from a battery through water containing a few drops of dilute sulphuric acid
In this process, two volumes of gas X are collected in a test-tube inverted over cathode
(negative electrode) whereas one volume of gas Y is collected in the test-tube inverted
over anode (positive electrode).
(a) Why do we add a few drops of dilute sulphuric acid to water before passing electric
current?

(b) Name the gas X.
(c) Name the gas Y.

(d) What does this decomposition reaction tell us about the composition of water​

Answer 1

Answer:

a). electrolysis takes place in an acidic water to decompose into 2 gases H2 and O2

b). hydrogen

c). oxygen

I am not sure about b and c

Answer 2

Answer:

a) to increase conductivity

b) gas X is hydrogen

c) gas Y is oxygen

d) this tells us that water contains H2 and O2 in te ratio 2:1

Explanation: