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प्रश्न
Consider the following salt:
\[\ce{ZCO3}\]
What would be the change in colour in blue litmus if \[\ce{ZCO3}\] is added to it and Z is potassium?
उत्तर
Reaction with Blue Litmus:
- Since potassium carbonate is a basic salt, it will not affect blue litmus because blue litmus remains blue in a basic solution.
- There will be no change in the colour of the blue litmus paper.
There will be no change in colour in blue litmus when potassium carbonate \[\ce{K2CO3}\] is added to it.
संबंधित प्रश्न
What do we observe on pouring acetic acid on red and blue litmus papers?
(A) Red litmus remains red and blue litmus turns red.
(B) Red litmus turns blue and blue litmus remains blue.
(C) Red litmus turns blue and blue litmus turns red.
(D) Red litmus becomes colourless and blue litmus remains blue.
Complete and balance the following chemical equations
Na2 CO3 (s) + HCI (aq) →
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What ions are present in the solutions of following substances? (write the symbols only)
Potassium hydroxide
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Name a metal compound which has detergent properties (cleansing properties).
The table given below shows the reaction of a few elements with acids and bases to evolve Hydrogen gas.
| Element | Acid | Base |
| A |
✗
|
✗ |
| B |
✓
|
✓ |
| C | ✓ | ✗ |
| D | ✓ | ✓ |
Which of these elements form amphoteric oxides?
If a few drops of a concentrated acid accidentally spills over the hand of a student, what should be done?
Write notes on the properties of acids.
Consider the following salt:
NH4X
If in salt NH4X, X is nitrate, then its solution will give what colour with a universal indicator? Why?
