| Column A | Column B |
|---|---|
| 1. Ammonium hydroxide soln. | Contains ions and molecules |
| 2. Dilute hydrochloric acid | Contains only ions |
| 3. Carbon tetrachloride | Contains only molecules |
Question
Match the following in column A with the correct answer from the choices given in column B.
| Column A | Column B |
|---|---|
| 1. Ammonium hydroxide soln. | Contains only ions. |
| 2. Dilute hydrochloric acid | Contains only molecules |
| 3. Carbon tetrachloride | Contains ions and molecules |
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💡 Some Related Questions
Select the correct answer from the list in bracket: 1. The cation discharged at the cathode most readily. [Fe2+, Cu2+, Pb2+, H1+] 2. The anion discharged at the anode with most difficulty. [SO42-, Br1-, NO31-,OH1-] 3. The metallic electrode which does not take part in an electrolytic reaction. [Cu, Ag, Fe, Ni] 4. The ion/s which is/are discharged during electrolysis of aq. CuSO4 using Cu electrode. [Cu2+, SO42-, H1+, OH1-] 5. A covalent compound which in aqueous state conducts electricity. [CCl4, CS2, NH3, C2H4]
Open Answer »Give balanced equations for the electrode reactions involved in the following conversions at the respective electrodes: 1. Aluminium oxide → Oxygen gas ← Copper [II] Sulphate 2. Copper metal → Copper ions → Copper metal 3. Lead [II] chloride → Chlorine gas ← Hydrochloric acid 4. Hydroxyl ions ← Acidified water → Oxygen gas 5. Potassium bromide → Bromine gas ← Lead bromide
Open Answer »Select the correct word from the words in brackets to complete the sentence: 1. The electrode at which anions donate excess electrons and are oxidized to neutral atoms is the …………… [anode/cathode] 2. On electrolysis, Ag1+ and H1+ ions migrate to the …………… [cathode/anode] and …………… [Ag1+/H1+] are discharged. 3. Electrolysis is a / an …………… [oxidation/reduction/redox] reaction in which reduction reaction takes place at the …………… [cathode/anode]. 4. According to Arrhenius’s theory the amount of electricity conducted by the electrolyte depends on the …………… [nature/concentration] of the ions in solution. 5. Salts ionize in aq. soln. on passage of electric current to give …………… [negative/positive] ions other than H+ ions.
Open Answer »Complete the table given below:
| Nature of Anode | Nature of Cathode | Ions present in electrolyte | Ion/s discharged at Cathode / Anode | |
|---|---|---|---|---|
| 1. Electroplating an iron rod with silver | ||||
| 2. Electroplating a copper sheet with nickel | ||||
| 3. Electrorefining of silver | ||||
| 4. Extraction of potassium from KCl | ||||
| 5. Extraction of aluminium from Al2O3 |