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 the coating of silver sulphide.

Select the correct answer from the code given below:
Code:

A) Only 2

B) Neither 1 nor 2

C) Both 1 and 2

D) Only 1

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2025 (GS Paper I)