Acid+Base→Salt+water |
HNO3+..............→KNO3+H2O |
.............+2NH4OH→(NH4)2SO4+............. |
.............+KOH→KBr+............. |
Name of the salt | Formula | Salt obtained from Base | Salt obtained from Acid |
(i) Ammonium Chloride | NH4Cl | NH4OH | - |
(ii) Copper sulphate | - | - | H2SO4 |
(iii) Sodium chloride | NaCl | NaOH | - |
(iv) Magnesium Nitrate | Mg(NO3)2 | - | HNO3 |
(v) Calcium nitrate | Ca(NO3)2 | Ca(OH)2 | - |
A | 1 |
B | 5 |
C | 7 |
D | 11 |
E | 13 |
A cloth strip dipped in onion juice is used for testing a liguid \mathrm{X}. The liquid '\mathrm{X}' changes its odour. Which type of an indicator is onion juice? The liquid '\mathrm{X}' turns blue litmus red. List the observations the liquid '\mathrm{X}'
will show on reacting with the following:
(a) Zinc granules
(b) Solid sodium carbonate
Write the chemical equations for the reactions involved.
Bleaching powder is produced
when chlorine reacts with?
Solution | pH Value | Reaction with Phenolphthalein solution | Reaction with Methyl orange solution |
HCl | 1 | No colour change. | Turns into red |
Distilled water | 7 | No colour change. | No colour change. |
NaOH | 13 | Turns into pink colour. | Turns into yellow colour. |
Lemon juice | 2.5 | No colour change. | Turns into red colour. |
NaCl | 7 | No colour change. | No colour change. |
Baking Soda | 8 | Turns into pink colour. | Turns into yellow colour. |