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Introduction to Qualitative Analysis

Match the fol...

Question

Match the following:

Column A Column B

1. Acid salt A. Sodium sulphate decahydrate

2. Epsom salt B. Basic lead chloride

3. Basic salt C. Sodium carbonate

4. Glauber's salt D. Magnesium sulphate heptahydrate

5. Normal salt E. Sodium hydrogen carbonate

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Solution

Disclaimer: There are three options for basic salt and no option match for acidic and normal salt.

Column A Column B

Epsom salt Magnesium sulphate heptahydrate

Basic salt Sodium hydrogen carbonate, Sodium carbonate, Basic lead chloride

Glauber's salt Sodium sulphate decahydrate

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Q. Match the following:

Column A	Column B
1. Acid salt 2. Mixed salt 3. Complex salt 4. Double salt 5. Normal salt	(a) Sodium potassium carbonate (b) Alum (c) Sodium carbonate (d) Sodium zincate (e) Sodium hydrogen carbonate

Q. Some methods used for the laboratory preparation of salts are:
(a) Metal + acid
(b) Carbonate + acid
(c) Precipitation (double decomposition)
(d) Direct combination
(e) Titration
Copy and complete the following table:

Salt	Method of Preparation
Ammonium sulphate Calcium carbonate Iron (III) chloride Lead nitrate Zinc sulphate	E

Q. Match the compounds in column I to their formulae in column II.

Column I	Column II
A. sodium sulphide	i. Na₂SO₄
B. magnesium sulphide	ii. MgSO₄
C. sodium sulphate	iii. Na₂S
D. magnesium sulphate	iv. MgS

(a) A-i; B-ii; C-iii; D-iv
(b) A-iii; B-iv; C-i; D-ii
(c) A-iv; B-iii; C-ii; D-i
(d) A-ii; B-i; C-iv; D-iii

Q. (d) Match the following:

	Column A	Column B
(i)	A substance that turns moist starch iodide paper blue.	Ferrous sulphate
(ii)	A compound which releases a reddish brown gas on reaction with concentrated sulphuric acid and copper turnings.	Chlorine
(iii)	A solution of this compound gives a dirty green precipitate with sodium hydroxide.	Copper nitrate
(iv)	A compound which on heating with sodium hydroxide produces a gas which forms dense white fumes with hydrogen chloride.	Lead carbonate
(v)	A white solid which gives a yellow residue on heating.	Ammonium sulphate

Q. Match the compounds in column I with the correct formula in column II.

Column I	Column II
a. hydrochloric acid	i. NaOH
b. slaked lime	ii. H₂SO₄
c. sulphuric acid	iii. H₂SO₃
d. nitric acid	iv. Ca(OH)₂
e. sodium hydroxide	v. H₂CO₃
f. calcium carbonate	vi. HCl
g. baking soda	vii. HNO₃
h. sulphurous acid	viii. CaCO₃
i. carbonic acid	ix. NaHCO₃

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