Identify the type of reaction in the following example:
Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)
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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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Is it possible to store? (i) H2SO4 in Al container? (ii) CuSO4 solution in Zn vessel?
(i) Yes (ii) No
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Identify the oxidizing and reducing agents in the following equations: Fe + H2SO4 → FeSO4
Oxidizing agents = H2SO4 and Reducing agents = Fe Oxidizing agents = Cl2 and Reducing agents = H2 Oxidizing agents = MnO2 and Reducing agents = HCl.
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Which one of the following is not oxidised by O3 ? State the reason : KI, FeSO4, K2MnO4, KMnO4
[Hint : KMnO4, since Mn is showing maximum oxidation state of + 7.]
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Explain CuSO4.5H2O is blue Explain CuSO4.5H2O is blue while CuSO4 is colourless ?while CuSO4 is colourless ?
Because water molecules act as ligands and results in crystal Fleld splitting of d-orbitals of Cu2+ ion.
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CuSO4 is colourless while CuSO4.5H2O is coloured. Why ?
CuSO4 does not has any ligand, so splitting of d-orbital take place while CuSO4.5H2O has water ligand.
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Identify the type of reaction in the following example:
It is a double displacement as well as a precipitation reaction.
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FeSO4 solution mixed with (NH4)2SO4 solution in 1 : 1 molar ratio gives the test of Fe^2+ ion but CuSO4 solution mixed
i. 1 : 1 molar mixture of FeSO4 and (NH4)2SO4 forms a double salt, FeSO4.(NH4)2SO4.6H2O (Mohr’s salt) which exists only in solid state. In aqueous solution, it dissociates into ions...
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What is Z in following reaction CuSO4 + Z → Cu3P2 +H2SO4
(c) 3CuSO4 + 2PH3 → Cu3 P2 + 3H2 SO4 3HgCl2 + 2PH3 → Hg3 P2 + 6HCl
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Why freshly prepared FeSO4 is used in nitrogen testing?
Because FeSO4 gets hydrolysed if its solution is stored for long.
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