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ICSE Class 10 Answered

For each of the salts A to E,suggest a suitable method for its preparation:(along with relevant balanced equations) 1.A is an insoluble salt 2.B is a soluble salt of copper 3.C is a soluble salt of zinc 4.D is a soluble salt of calcium 5.E is a sodium salt
Asked by pb_ckt | 28 Jan, 2019, 12:18: PM
answered-by-expert Expert Answer

1.A is an insoluble salt

By precipitation:

Pb(NO3)2 + 2NaCl → PbCl2 + 2NaNO3

2.B is a soluble salt of copper

Double decomposition

CuCO3 + H2SO4→ CuSO4 + H2O + CO2

3.C is a soluble salt of zinc

Simple displacement:

Zn + H2SO4→ ZnSO4 + H2

4.D is a soluble salt of calcium

by reaction of metallic salt with dilute acids

CaCO3 + 2HCl→ CaCl2 + H2O + CO2

5.E is a sodium salt

By neutralization:

NaOH + HCl → NaCl + H2O

Answered by Ramandeep | 28 Jan, 2019, 02:46: PM

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