Home
Class 10
CHEMISTRY
Why do silver articles become black afte...

Why do silver articles become black after sometime when exposed to air ?

Text Solution

Verified by Experts

They get tarnished by reacting with atmospheric air to form silver sulphide.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL REACTIONS AND EQUATIONS

    OSWAAL PUBLICATION|Exercise TOPIC-2 (Types of Chemical Reactions-Corrosion and Rancidity) (SHORT ANSWER TYPE QUESTION)|14 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    OSWAAL PUBLICATION|Exercise TOPIC-2 (Types of Chemical Reactions-Corrosion and Rancidity) (SHORT ANSWER TYPE QUESTION-II)|21 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    OSWAAL PUBLICATION|Exercise TOPIC-2 (Types of Chemical Reactions-Corrosion and Rancidity) (Match the Column)|1 Videos

  • CARBON AND ITS COMPOUNDS

    OSWAAL PUBLICATION|Exercise NCERT Corner (Textbook Exercises)|15 Videos

  • METALS AND NON-METALS

    OSWAAL PUBLICATION|Exercise NCERT CORNER (Textbook Exercises)|16 Videos

Similar Questions

Explore conceptually related problems

Name a metal/non-metal : (i) Which makes iron hard and strong ? (ii) Which is alloyed with any other metal to make an amalgam ? (iii) Which is used to galvanise iron articles ? (iv) Whose articles when exposed to air form a black coating ?

a. Define corrosion. b. What is corrosion of iron called? c.Why corrosion of ironis a serious problem? d. How we can prevent corrosion of iron? e. How will you recognise the corrosion of silver? OR Why does silver turn blackish when exposed to air?

Write the chemical name of the coating that forms on silver and copper articles when these are left exposed to moist air.

Some articles made of silver, copper and iron get coloured coating over them when they are exposed to air . Identify the colour and chemical name of the substance of coating in each case.

Name two metals that start floating after sometime when immersed in water and explain why they do so.

Explain the reaction of diborane when it is exposed to air?

When a bottle of scent or ammonia is opened in one corner of a room, it can be smelled at the farthest corner after sometime due to the process of diffusion . At this stage , an equilibrium is reached due to the same concentration in space . At this point .

Crystals of a substance changed their colour on heating in a closed vessel but regained after sometime, when they were allowed to cool down. (i) Name one such substance. (ii) Explain the phenomenon involved.