Why Are Tarnished Copper Vessels Cleaned With Tamarind Juice?

Why are the inner side of vessels made up of brass and copper coated?

Answer.

the inner sides of vessels made of up brass and copper coated because these metals do not react with the substances that are stored in it ..

Why are sour substances effective?

Explain why these sour substances are effective in cleaning the vessels. Answer: Copper metal slowly reacts with water, carbon dioxide and oxygen present in air to form basic copper carbonate which is green in colour. Its layer slowly gets deposited on the surface of the metal.

Which acid is present in substances which are used to clean greenish stains on copper vessels?

hydrochloric acidCopper turns green when it is oxidized. When the green substance builds up, it can be cleaned thoroughly using a solution containing hydrochloric acid.

Why are copper vessels tarnished?

So, basically copper vessels generally get tarnished (change color) when kept in open. It is due to the formation of a black layer of copper oxide and a green layer of copper carbonate on the copper vessel when it comes in contact with the light and oxygen. These copper oxide and copper carbonate are basic in nature.

Why sour substances are effective in cleaning copper vessels?

In tarnished copper vessel there is layer formed due to corrosion which is basic in nature which is dissolved in the lemon or tamarind juice which are acidic in nature. Thus the vessel get thoroughly cleaned.

Why a tarnished copper vessel regains its shine when rubbed with lemon?

Copper vessels tarnish due to the formation of basic copper carbonate which gets neutralized when rubbed with lemon and the copper vessel regains its shine.

Why are tarnished copper vessels cleaned using lemon juice or tamarind juice?

The citric acid present in the lemon or tamarind neutralises the basis copper carbonate and dissolves the layer. That is why, tarnished copper vessels are cleaned with lemon or tamarind juice to give the surface of the copper vessel its characteristic lustre.

What is the Colour of tarnished copper vessels?

Why Copper Tarnishes Copper is a reactive metal. In a process called oxidation, copper reacts slowly in the presence of oxygen, resulting in copper oxide. This is what we call tarnish, which is generally perceived as a brown or black coloration on the surface.

What happens when copper reacts with lemon?

Drinking lemon juice in copper utensils hastens corrosion in vessel due to presence of citric acid in lemon and adds more amount of copper in the water, so I would advise you to go to the nearest ER as soon as possible because you may have copper toxicity due to excessive copper intake due to the lime juice reaction …

Why pickles and sour substances are not stored in brass and copper vessels?

Pickles and curd are not stored in brass and copper utensils because when they are kept in copper or brass utensils, curd or pickle reacts with copper and brass. This reaction will initiate formation of toxic compounds (Toxic Salts) which may be unfit for human consumption, and may cause food poisoning.

Why lemon and tamarind is used for cleaning the copper pots vessels?

Lemon and tamarind contain acid. The acid dissolves the green coating of basic copper carbonate present on the surface of a tarnished copper utensil and makes it shiny again. Additional Information:-The citric acid is present in the lemon or tamarind neutralizes the basic copper carbonate and dissolves the layer.

How a tarnished copper vessel can be restored by using an acid?

Tarnished copper vessels are being cleaned with lemon or tamarind because copper vessel forms a basic layer of copper oxide which is greenish in color and it is cleaned by lemon. … The tarnish dissolves into the acid and is washed away. The acidic nature of lemon removes the oxidation on the copper vessel.