Chemistry, asked by mursalinpathan3, 9 months ago

silver articles turn black when kept in the open for a few days the article? when rubbed with toothpaste again started shining.
1 why do silver articles turn black when kept in a the open for a few days name the phenomenon involved ​

Answers

Answered by rabiashaikh1975
17

Answer:

ANNEYONGHASEYO CHINGU ...

SILVER ARTICLES WHEN EXPOSED TO AIR TURN BLACK BECUZ OF THE REACTION OF SILVER (Ag) WITH THE OXYGEN PRESENT IN THE AIR

THIS FORMS A LAYER SULPHUR ON THE SILVER AND IT LOOKS BLACKENED

THIS PROCESS IS CALLED AS TARNISHING .

WHEN WE RUB TOOTHPASTE ON THE ARTICLE IT TAKE OF THE LAYER OF SULPHUR THUS THE ARTICLE SHINES AGAIN

HOPE THIS HELPS YOU OUT MATE

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Answered by siddhamjain
11

Silver article turns black when kept in the air because silver reacts with sulphur compounds such as hydrogen sulphide (H2S) present in air and forms silver sulphide.

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