Question

What is the amount of chlorine evolved when 2 amperes of current is passed for 30 minutes in an aqueous solution of NaCl ?
(a) 66 g
(b) 1.32 g
(c) 33 g
(d) 99 g

Answer 1

your answer isssssss " c "...

Answer 2

Answer:

b) 1.32g

Explanation:

Total current = 2 amperes (Given)

Time till which current is passed = 30 mins (Given)

As Q = It

where Q is the quantity of electricity in coloumbs, I is the current in amperes = 1A  and t is the time in seconds

Total charge carried  = 2 x 30 x 60  = 3600 C

Now, since 96500 C of charge deposits 35.5 g chlorine. Thus -

= 3600 C of charge will deposit

= 35.5/96500 x 3600

= 1.32 g

Therefore, the amount of chlorine evolved when 2 amperes of current is passed for 30 minutes in an aqueous solution of NaCl is 1.32g.