Question
Write notes on the properties of bases. .
✓
Answer
(a) They have bitter taste.
(b) Their aqueous solutions have soapy touch.
(c) They turn red litmus blue.
(d)Their aqueous solutions conduct electricity.
(e) Bases react with metals to form salt with the liberation of hydrogen gas.
Zn + 2 NaOH → Na2ZnO2 + H2↑(f) Bases react with non-metallic oxides to produce salt and water. Since this is similar to the reaction between a base and an acid, we can conclude that non-metallic oxides are acidic in nature,
Ca(OH)2 + CO2 → CaCO3+ H2O(g) Bases react with acids to form salt and water.
KOH + HCl → KCl + H2O
The above reaction between a base and an acid is known as Neutralisation reaction.(h) On heating with ammonium salts, bases give ammonia gas.
NaOH + NH4Cl → NaCl + H2O+ NH3↑
(b) Their aqueous solutions have soapy touch.
(c) They turn red litmus blue.
(d)Their aqueous solutions conduct electricity.
(e) Bases react with metals to form salt with the liberation of hydrogen gas.
Zn + 2 NaOH → Na2ZnO2 + H2↑(f) Bases react with non-metallic oxides to produce salt and water. Since this is similar to the reaction between a base and an acid, we can conclude that non-metallic oxides are acidic in nature,
Ca(OH)2 + CO2 → CaCO3+ H2O(g) Bases react with acids to form salt and water.
KOH + HCl → KCl + H2O
The above reaction between a base and an acid is known as Neutralisation reaction.(h) On heating with ammonium salts, bases give ammonia gas.
NaOH + NH4Cl → NaCl + H2O+ NH3↑
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Differentiate between flat worms and round worms?
| Sr. No. | List I | List II | |
| 1. | Motion of a body covering equal distances in equal interval of time | D. |  |
| 2. | Motion with non uniform acceleration | C. |  |
| 3. | Constant retardation | A. |  |
| 4. | Uniform acceleration | B. |  |
What are the applications of electrochemistry?
Give an example for each of the following statement.
Formation of coordinate covalent bond between NH3 ➝ BF3 molecules
Differentiate mass and weight.
Explain the advantages of Ac over Dc.
The Earth’s distance from the Sun is 149.6 × 106km and the period of Earth’s revolution is 1 year. Calculate the ratio of the squares of the periods to cubes of the major axis.
Mention the drawbacks of Nanomaterials in chemistry.
Discuss in brief about the properties of coordinate covalent compounds.
Explain how does SONAR work?