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प्रश्न
Write a balanced chemical equation of the reaction which takes place.
उत्तर
CuO(s) + 2HCl(aq) → CuCl2(aq) + H2O(l)
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संबंधित प्रश्न
When phenolphthalein is added to NaOH, the colour of the solution will become _________.
- colourless
- red
- pink
- yellow
Why does an aqueous solution of an acid conduct electricity?
Complete and balance the following chemical equations:
Zn (s) + HCI (aq) →
What ions are present in the solutions of following substances? (write the symbols only)
Sulphuric acid
Phenolphthalein is a synthetic type of indicator.
Choose the correct alternative and rewrite the following sentence.
Phenolphthalein is ___________ type of indicator.
What happens when a solution of an acid is mixed with a solution of a base in a test tube?
- The temperature of the solution increases
- The temperature of the solution decreases
- The temperature of the solution remains the same
- Salt formation takes place
Solutions of acids conduct ______.
Consider the following salt:
NH4X
If in salt NH4X, X is nitrate, then its solution will give what colour with a universal indicator? Why?
The metal that will not produce hydrogen gas when reacted with dilute acids.
