Electrolytic Dissociation

Q.

What type of reaction involved in black and white photography.

Q.

Why a dilute acid is added to water during electrolysis of water?

Q.

Explain why the $\mathrm{NaCl}$ is not a conductor of electricity in the solid state whereas it does conduct electricity in an aqueous solution as well as in a molten state?

Q.

identify the following compounds are ions as acids /bases CL- NH4 +, HSO4-

Q. Sugar solution is an electrolyte.

1. True
2. False

Q.

What species are present in an aqueous solution of Ammonia?

Q.

In the Electrolysis of acidulated water, _______ gas is evolved at the anode

Q.

__ (electrolytic dissociation/ electrolytic ionisation) is the process due to which an ionic compound dissociates into ions in the fused state or in aqueous solution.

Q.

why ionic compounds are bad conductors of electricity and good conductor in molten or aqueous

Q.

If Na+ and H+ ion is present in an electrolytic solution the which one will migrate towards the cathode and get discharged?

Q.

Carbon tetrachloride $\left(CC{l}_4\right)$ and Aluminium trichloride $\left(AlC{l}_3\right)$ both are non-polar compounds. In presence of water $CC{l}_4$ forms non-conducting liquid whereas $AlC{l}_3$ conducts current.

Q.

Can Borax be used for electrolysis ?

Q.

Name the product formed at the anode during the electrolysis of acidified water using platinum electrodes.

Q.

27. What type of particles are found in aq. solution of weak electrolyte?

Q.

____ metal cannot be extracted from their aqueous solutions by electrolysis.

Q. During electrolysis of brine solution, product obtained at cathode and anode are:

1. chlorine and hydrogen gas respectively
2. hydrogen and chlorine gas respectively
3. sulphate and chlorine gas respectively
4. sodium and hydrogen gas respectively

Q.

When hydronium ions increase than OH- ions also increase. Is this true?

Q.

In general, salts

1. are ionic compounds

2. contain hydrogen ions

3. contain hydroxide ion

4. turn blue litmus red

Q.

Write equations for the reactions taking place at the two electrode(mentioning clearly the name of the electrode) during the electrolysis of: Acidified copper sulphate solution with copper electrodes.

Q.

Write down the ionic equation for the reactions that take place at the cathode during the electrolysis of an aqueous solution of nickel sulfate.

Q.

With platinum electrodes hydrogen is liberated at the _______ and oxygen at the _________ during the electrolysis of acidified water.

Q.

Which one is formed at anode when molten lead bromide is electrolysed using graphite electrode?

Q. When and Why is there an effect of concentration of OH ions

Q. 3%solution of glucose is isotonic with 1% solution of a non-volatile non-electrolyte substance the molecular mass of the substance would be

1. 30
2. 60
3. 90
4. 120

Q. Fe+S when heated forms a black mass in which when dilute HCl (hydrochloric acid) is added forms which gas and compound

Q.

Outline the steps required to convert hydrogen chloride to anhydrous FeCl₃. Write equations for the reactions involved.

Q.

How can we identify that a particular compound is a salt?

Q. what happens when dilute sulphuric acid is poured on copper plate ?

Q.

What happens to an electrolyte when it is an ionized?

Q. Electrolysis of molten NaCl releases ________ at cathode and _______ at anode respectively.

1. hydrogen, chlorine
   
2. sodium, hydrogen
   
3. chlorine, sodium
   
4. sodium, chlorine