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How much copper can be obtained from 100 g of copper sulphate (CuSO4) ?
Answer: We have 1 mole of CuSO4 contains 1 mole of copper. Molar mass of CuSO4 = Atomic mass of [Cu × 1 + S × 1 + O × 4 ] =(63.5) + (32.00)...
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In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal.
Answer 2AgNO3 (aq) + Cu (s) → Cu(NO3)2 (aq) + 2Ag (s) Silver Nitrate + Copper → Copper Nitrate + Silver
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What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution?
Iron nails become reddish brown in colour and solution becomes green in colour.
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Which of the following pairs will give displacement reactions? (a) NaCl solution and copper metal (b) MgCl2 solution and aluminium metal
(d) AgNO3 solution and copper metal
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You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice.
Copper reacts with moist carbon dioxide in air to form copper carbonate and as a result, copper vessel loses its shiny brown surface forming a green layer of copper carbonate....
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after electroplating a spoon with copper, the connections of the copper plate and the spoon are interchanged. What will happen them explain?
If after electroplating a spoon with copper, the connections of the copper plate and the spoon are interchanged, the copper deposited on the spoon will start disappearing and going into...
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What happens when a. Dilute sulphuric acid is poured on a copper plate? b. Iron nails are placed in copper sulphate solution?
(a) When dilute sulphuric acid is poured on a copper plate, there will be evolution of hydrogen gas along with the formation of blue color crystals of copper sulphate. CuSO4 +...
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The process that you saw in Activity 14.7 is used for purification of copper. A thin plate of pure copper and a thick
Copper ion is positively charged. It is attracted towards the plate which is connected to the negative terminal of the battery. As copper ions are transferred to the thin copper...
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Which form of copper is called blister copper ?
[Hint : The solidied copper obtained has blistered appearance due to the evolution of SO2, so it is called blistered copper.]
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Write the method to produce copper matte from copper pyrites.
[Hint : Froth Floatation.]
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