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Chemical Properties of Ethers

Choosing only...

Question

Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
Zinc carbonate

Dilute sulphuric acid Copper Copper carbonate
Iron Sodium carbonate
Sodium
Zinc

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Solution

The following reactions are required for preparing zinc carbonate from the given substances:
(i) $Z n + H_{2} {S O}_{4} (dil) \to {Z n S O}_{4} + H_{2}$
(ii) ${Z n S O}_{4} + {N a}_{2} {C O}_{3} \to {Z n C O}_{3} +$ ${N a}_{2} {S O}_{4}$

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Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain :

(a) Sodium sulphate, (b) Copper sulphate,

(c) Iron (II) sulphate, (d) Zinc carbonate,

$\begin{matrix} Dilute sulphric acid & C o p p e r & C o p p e r c a r b o n a t e Iron & S o d i u m C a r b o n a t e Sodium Zinc \end{matrix}$

Q. (a) Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
(i) Sodium sulphate
(ii) Copper sulphate
(iii) Iron (II) sulphate
(iv) Zinc carbonate

Dilute sulphuric acid

Copper
Iron
Sodium, Zinc

Copper carbonate
Sodium carbonate

(b) From the formulae listed below, choose one, in each case, corresponding to the salt having the given description:
AgCl, CuCO₃, CuSO₄·5H₂O, KNO₃, NaCl, NaHSO₄, Pb(NO₃)₂, ZnCO₃, ZnSO₄·7H₂O.
(i) An acid salt.
(ii) An insoluble chloride.
(iii) On treating with concentrated sulphuric acid, this salt changes from blue to white.
(iv) On heating this salt changes from green to black.
(v) This salt gives nitrogen dioxide on heating.

Q. From the list of the substances given, name the substances which you would use to prepare each of the following salts:
List of substances: copper, lead, sodium, zinc, copper oxide, lead carbonate, sodium carbonate solution, dilute hydrochloric acid, dilute nitric acid and dilute sulphuric acid.
Salts: (a) zinc sulphate (b) copper sulphate (c) sodium sulphate (d) lead sulphate.

Q. Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
Iron (II) sulphate

Dilute sulphuric acid Copper Copper carbonate
Iron Sodium carbonate
Sodium
Zinc

Q. Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
Copper sulphate

Dilute sulphuric acid Copper Copper carbonate
Iron Sodium carbonate
Sodium
Zinc

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Chemical Properties of Ethers

Standard XII Chemistry

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