Question 13 - MCQs from NCERT Exemplar - Chapter 3 Class 10 - Metals and Non-Metals

Last updated at April 16, 2024 by

Silver articles become black on prolonged exposure to air. This is

due to the formation of

(A) Ag 3 N

(B) Ag 2 O

(C) Ag 2 S

(D) Ag 2 S and Ag 3 N

 

Answer.

Silver articles react with sulphur present in air and turn black due to the formation of Ag 2 S

CORROSION OF SILVER METAL - Teachoo.jpg


So, the correct answer is (c)

Go Ad-free
Maninder Singh's photo - Co-founder, Teachoo

Made by

Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo