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Study Of Acids, Bases and Salts — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryStudy Of Acids, Bases and Salts5 Marks
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:
(i) Sodium sulphate
(ii) Copper sulphate
(iii) Iron (II) sulphate
(iv) Zinc carbonate
Dilute sulphuric acidCopper, Iron,
Sodium, Zinc		Copper carbonate,
Sodium carbonate
✓

Answer

(i) Preparation of Sodium Sulphate:Sodium
Carbonate + Dilute Sulphuric acid $\rightarrow$ Sodium Sulphate + Water + Carbon dioxide.
$
Na _2 CO _3+ H _2 SO _4 \longrightarrow Na _2 SO _4+ H _2 O + CO _2
$
(ii) Preparation of Copper Sulphate:
Copper Carbonate + dilute Sulphuric acid $\rightarrow$ Copper Sulphate + water + carbon dioxide.
$
CuCO _3+ H _2 SO _4 \longrightarrow CuSO _4+ H _2 O + CO _2
$
(iii) Preparation of iron (II) sulphate :
Iron + dilute Sulphuric acid $\rightarrow$ Iron (II) Sulphate + Hydrogen
$
Fe + H _2 SO _4 \longrightarrow FeSO _4+ H _2
$
(iv) Preparation of Zinc Carbonate:
$
Zn + H _2 SO _4(\text { dil }) \longrightarrow ZnSO _4+ H _2
$
$
ZnSO _4+ Na _2 CO _3 \longrightarrow ZnCO _3+ Na _2 SO _4
$

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