It was Paheli’s birthday. Her grandmother gave her two gifts made of metals, one old dull silver spoon and a pair of lustrous gold earrings. She was surprised to see the difference in the appearance of the two metals. Can you explain the reason for this difference?

Open in App

Solution

Silver on long exposure to moist air becomes dull as it gets tarnished whereas gold does not corrode as it does not react with moist air.

Suggest Corrections

156

Similar questions

Question 12

It was Paheli's birthday. Her grandmother gave her two gifts made up of metals, one old dull silver spoon and a pair of lustrous gold ear-rings she was surprised to see the difference in the appearance of the two metals. Can you explain the reason for this difference ?

Q. Paheli bought a statue made of copper. To her surprise, it acquired a dull green coating after a couple of months. Explain the reason.

Q. On Sorika's birthday her mother gave her a pair of gold ear-rings. After one month Sonika observed that the ear-rings are losing their shine. She checked the mark on the ear-rings and found that it was not a proper Hallmark and her mother had been cheated by the shopkeeper. So, she fined a complaint in the district forum which rejected it. Not satisfied by the decision of district forum, she was very much disturbed and after two months decided to appeal further.
Can Sonika appeal against the decision of the district forum?

Give reason in support of your answer.

Q. Question 16
Paheli watched her grandmother making mango pickle. After she bottled the pickle, her grand mother poured oil on top of the pickle before closing the lid. Paheli wanted to know why oil was poured? Can you help her understand why?

Q. Question 22

Paheli bought a statue made of copper. To her surprise, it acquired a dull green coating after a couple of months. Explain the reason.

Join BYJU'S Learning Program

Explore more

Metals

Standard VIII Chemistry

Join BYJU'S Learning Program

It was Paheli’s birthday. Her grandmother gave her two gifts made of metals, one old dull silver spoon and a pair of lustrous gold earrings. She was surprised to see the difference in the appearance of the two metals. Can you explain the reason for this difference?​

Silver on long exposure to moist air becomes dull as it gets tarnished whereas gold does not corrode as it does not react with moist air.​

It was Paheli’s birthday. Her grandmother gave her two gifts made of metals, one old dull silver spoon and a pair of lustrous gold earrings. She was surprised to see the difference in the appearance of the two metals. Can you explain the reason for this difference?

Silver on long exposure to moist air becomes dull as it gets tarnished whereas gold does not corrode as it does not react with moist air.