Acids, Bases and Salts

Q.

Does hydrogen have a positive or negative charge?

Q.

Among distilled water, tap water, and ocean water, which will be the best electrical conductor and why?

Q.

Vinegar is a sour liquid. State whether vinegar will conduct electricity or not.

Q. Solutions of acids, bases and salts can conduct electricity.

1. True
2. False

Q. On electrolysis of aqueous $CuS{O}_4$ with $Cu$ electrodes, the reduced $Cu$ gets deposited on:

1. sides of the container
2. negative terminal electrode
3. half of positive terminal and half of negative terminal electrodes
4. positive terminal electrode

Q. Most liquids that conduct electricity are solutions of ________, ________ and ________.
[1 mark]
[NCERT]
[Conductors and insulators]

Q. Is viniger conduct electricity

Q.

Three different electrolytic cells A, B and C are connected in separate circuits. Electrolytic cell A contains sodium chloride solution. When the circuit is completed bulb in the circuit glows brightly. Electrolytic cell B contains acetic acid solution and in this case the bulb in the circuit glows dimly. The electrolytic cell C contains sugar solution and the bulb does not glow. Give a reason for each of these observations.

Q. Lemon is a good conductor of electricity because it contains ________.

1. acid
2. base
3. metal ions
4. salt

Q.

Which of the following is true?

1. Distilled water conducts electricity

2. Salt solution does not conduct electricity

3. Dilute hydrochloric acid conducts electricity

4. Dilute hydrochloric acid does not conduct electricity

Q. Which of the following liquids is a good conductor of electricity?

1. Distilled water
2. Salt solution
3. Honey
4. Sugar solution

Q. The electrical conductivity of pure water can be increased by addition of

1. honey
2. kerosene
3. sugar
4. baking soda

Q. Dilute sulphuric acid (as an electrolytic solution) would split into which of the following group of ions?

1. Oxygen ions and hydrogen ions
2. Oxygen ions, hydrogen ions and sulphur ions
3. Hydrogen ions, oxygen ions and sulphate ions
4. Hydrogen ions and sulphate ions

Q. Lemon is a good conductor of electricity because it contains ________.

1. acid
2. base
3. salt
4. metal ions

Q. Citrus fruits can conduct electricity because they contain .

1. salts
2. acids
3. bases