UPPCS · Question 112

With reference to 'silver articles', which of the following statements is/are correct? 1. Silver articles turn black after some time when exposed to air. 2. It happens due to coating of silver sulphide. Select the correct answer using the code given below.

1. ANeither 1 nor 2
2. BOnly 1
3. COnly 2
4. DBoth 1 and 2