Match the following :
| Acid-base titration | Suitable indicator |
| a) HCI Vs NaOH | 1. Phenolphtalein |
| b) HCI Vs Na2CO3 | 2. No suitable indicator |
| c) CH3COOH Vs NH4OH | 3. Both methyl orange and phenolphthalein |
| d) Oxalic acid Vs NaOH | 4. Methyl orange |
Match the following :
| (a) CuSO4 5H2O | 1. Lunar caustic |
| (B) ZnCO3 | 2. Philosopher's wool |
| (c) AgNO3 | 3. Blue vitriol |
| (d) ZnO | 4. Calamine |