Properties of Bases

Q. Which of the following is NOT a characteristic of a base?​
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1. Turns red litmus paper blue
2. Bitter in taste
3. Slippery to touch
4. Turns blue litmus paper red

Q. The potassium oxide forms potassium hydroxide when dissolved in water.

1. True
2. False

Q. Identify the properties of bases.

1. Bitter in taste
2. Shiny surface
3. Slippery
4. Sour in taste

Q.

Is Vinegar an alkali?

Q. Which of the following are properties of calcium hydroxide?

1. Bitter in taste
2. Soapy in touch
3. Turns red litmus to blue
4. Sour in taste

Q. Which of the following are properties of calcium hydroxide?

1. Bitter in taste
2. Soapy in touch
3. Turns red litmus to blue
4. Sour in taste

Q.

Which of the following is not a property of a base?

1. Bases are bitter in taste

2. Bases do not change the colour of red litmus.

3. Bases turn red litmus blue​

4. Bases are soapy to touch

Q. Which of the following are not the properties of bases?

1. Bases turn yellow turmeric to red
2. Bases change blue litmus to red.
3. Bases change red litmus to blue.
4. Bases are soapy in touch.

Q. Read the statements and choose the correct option.
i. ‘A’ reacts with oxygen to form an acidic oxide.
ii. ‘B’ reacts with oxygen to form a basic oxide.
iii. Oxides of A and B react with water to form X and Y solutions, respectively.

1. A - Non-metal, B - Metal, X - Acidic, Y - Basic
2. A - Metal, B - Non-metal, X - Acidic, Y - Basic
3. A - Non-metal, B - Metal, X - Basic, Y - Acidic
4. A - Metal, B - Non-metal, X - Basic, Y - Acidic

Q. Which of the following are not the properties of bases?

1. Bases are bitter in taste

2. Bases do not change the colour of red litmus.

3. Bases turn red litmus blue​

4. Bases are soapy to touch

Q. Read the statements and choose the correct option.
i. ‘A’ reacts with oxygen to form an acidic oxide.
ii. ‘B’ reacts with oxygen to form a basic oxide.
iii. Oxides of A and B react with water to form X and Y solutions, respectively.

1. A - Metal, B - Non-metal, X - Acidic, Y - Basic
2. A - Non-metal, B - Metal, X - Basic, Y - Acidic
3. A - Non-metal, B - Metal, X - Acidic, Y - Basic
4. A - Metal, B - Non-metal, X - Basic, Y - Acidic