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The process due to which greenish colour...

The process due to which greenish coloured conating is formed on brass utensil.

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Corrosion
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Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. Give the chemical formula of rust.

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. What happens to silver ornaments if they are exposed to air containing H_(2)S gas?

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. Do gold ornaments corrode? Justify.

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. What is rust?

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. Why do we apply paint on iron articles?

TARGET PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-Name the following
  1. Name the metal used as catalyst in the conversion of vegetable oil to ...

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  2. Name the product formed in reaction between coal (carbon) and oxygen (...

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  3. Name the reddish coloured poisonous gas evolved during the reaction of...

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  4. Name the gas formed when copper reacts with dilute nitric acid

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  5. Which solution is used in voters ink?

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  6. Write the formula of the product formed due to reaction of ammonia gas...

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  7. Name one physical change which is exothermic

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  8. Write the formula of potassium chlorate

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  9. Write the formula of potassium dichromate

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  10. The process due to which greenish coloured conating is formed on brass...

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  11. Name two catalysts used in hydrogenation of vegetable oils

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  12. Name the product formed in reaction between coal (carbon) and oxygen (...

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  13. Name the reddish coloured poisonous gas evolved during the reaction of...

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  14. Name the gas formed when copper reacts with dilute nitric acid

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  15. Which solution is used in voters ink?

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  16. Write the formula of the product formed due to reaction of ammonia gas...

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  17. Name one physical change which is exothermic

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  18. Write the formula of potassium chlorate

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  19. Write the formula of potassium dichromate

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  20. The process due to which greenish coloured conating is formed on brass...

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