Question

please tell me correct options ​

Answer 1

Answer:

1) b

2) d

Explanation:

Material required- Copper sulphate solution, Iron nail, test tube.

Method- In the test tube, pour copper sulphate solution. Drop the iron nails it and wait for the reaction to take place.

Observation- Solution turns blue. The nail which is in the contact with the solution turns reddish-brown.

Answer 2

Answer:

no,the correct answer is..

(c)

(d)