Match the substances in Column I with those in Column II- -5 MARKS-1-c- Column I 2-c- Column II a Tartaric acid i soap b Calcium hydroxide ii curd c Formic acid iii unripe mangoes d Sodium hydroxide iv ant-s sting e Lactic acid v lime water

Each correct match: 1 Mark (a) (iii) Tartaric acid is present in unripe mangoes. (b) (v) Calcium hydroxide is present in lime water. (c) (iv) Formic acid is pr ...

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Standard VII

Chemistry

Uses of Acids and Bases

Match the sub...

Question

Match the substances in Column I with those in Column II. [5 MARKS]

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Solution

Explanation:
(a) Tartaric acid - (iii) Unripe mangoes
Tartaric acid is naturally present in unripe mangoes.
(b) Calcium hydroxide - (v) lime water
Calcium hydroxide is is also called lime water. It is obtained by the action of water on calcium oxide.
(c) Formic acid - (iv) Ant's sting
Formic acid is present in ant's sting.
(d) Sodium hydroxide - (i) Soap
Sodium hydroxide is present in soap.
(e) Lactic acid - (ii) Curd
Lactic acid is present in curd.
(a) Tartaric acid (iii) Unripe mangoes
(b) Calcium hydroxide (v) lime water
(c) Formic acid (iv) Ant's sting
(d) Sodium hydroxide (i) Soap
(e) Lactic acid (ii) Curd

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Question 18

Match the substances in Column I with those in Column II

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

Match the items of column I with those of column II:

Column I		Column II
(a)	Ammonotelism	(i)	Birds
(b)	Bowman’s capsule	(ii)	Water reabsorption
(c)	Micturition	(iii)	Bony fish
(d)	Uricotelism	(iv)	Urinary bladder
(d)	ADH	(v)	Renal tubule

Match column I with column II:

Column I			Column II
(a)	Eosinophils	(i)	Coagulation
(b)	RBC	(ii)	Universal Recipient
(c)	AB Group	(iii)	Resist Infections
(d)	Platelets	(iv)	Contraction of Heart
(e)	Systole	(v)	Gas transport

Match the substances given in Column A with their uses given in Column B.

A		B
(i)	Gold	(a)	Thermometers
(ii)	Iron	(b)	Electric wire
(iii)	Aluminium	(c)	Wrapping food
(iv)	Carbon	(d)	Jewellery
(v)	Copper	(e)	Machinery
(vi)	Mercury	(f)	Fuel

(a) Tartaric acid	(iii) Unripe mangoes
(b) Calcium hydroxide	(v) lime water
(c) Formic acid	(iv) Ant's sting
(d) Sodium hydroxide	(i) Soap
(e) Lactic acid	(ii) Curd