Question

1. Ca(OH)2 is

(a) an acid
(b) a salt
(c) a base
(d) an alkali

2. H2SO4 is

(a) an acid
(b) a salt
(c) a base
(d) an alkali

3. CuSO4 is

(a) an acid
(b) a salt
(c) a base
(d) an alkali

4. Which of the following is an organic acid?

(a) HC1
(b) NHO3
(c) CH3COOH
(d) H2SO4

5. Salt is formed when

(a) metals react with acids
(b) metals react with bases
(c) metals react with alkalis
(d) metals react with water

6. CO2 turns lime water milky due to the formation of

(a) CaCO3
(b) CaSO4
(c) Ca(HCO3)3
(d) CaO

7. Which of the following methods is used to obtain chlorine and hydrogen from
sodium chloride?

(a) Neutralisation
(b) Distillation
(c) Electrolysis
(d) Electroplating

8. Which of the following is used for treating indigestion?

(a) Antibiotic
(b) Antacid
(c) Analgesic
(d) Antiseptic​

Answer 1

1. Ca(OH)2 is

• (a) an acid
• (b) a salt
• (c) a base
• (d) an alkali ✅

2. H2SO4 is

• (a) an acid ✅
• (b) a salt
• (c) a base
• (d) an alkali

3. CuSO4 is

• (a) an acid
• (b) a salt ✅
• (c) a base
• (d) an alkali

4. Which of the following is an organic acid?

• (a) HC1
• (b) NHO3
• (c) CH3OOH ✅
• (d) H2SO4

5. Salt is formed when

• (a) metals react with acids ✅
• (b) metals react with bases
• (c) metals react with alkalis
• (d) metals react with water

6. CO2 turns lime water milky due to the formation of

• (a) CaCO3 ✅
• (b) CaSO4
• (c) Ca(HCO3)3
• (d) CaO

7. Which of the following methods is used to obtain chlorine and hydrogen from

sodium chloride?

• (a) Neutralisation
• (b) Distillation
• (c) Electrolysis ✅
• (d) Electroplating

8. Which of the following is used for treating indigestion?

• (a) Antibiotic
• (b) Antacid ✅
• (c) Analgesic
• (d) Antiseptic

━━━━━━━━━━━

Answer 2

★ ANSWERS :

⓵) Ca(OH)₂ is an alkali.

⓶) H₂SO₄ is an acid.

⓷) CuSO₄ is a salt.

⓸) CH₃COOH is an organic acid.

⓹) Salt is formed when metals react with acids.

⓺) CO₂ turns lime water milky due to the formation of CaCO₃.

⓻) Electrolysis methods is used to obtain chlorine and hydrogen from sodium chloride.

⓼) Antacid is used for treating indigestion.