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प्रश्न
Copy and complete the following table:
| Column 1 | Column 2 | Column 3 |
| Substance reacted with acid | Dilute or concentrated acid | Gas |
| Hydrogen | ||
| Carbon dioxide | ||
| Only chlorine |
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उत्तर
| Column 1 | Column 2 | Column 3 |
| Substance reacted with acid | Dilute or concentrated acid | Gas |
| Zinc | Dilute sulphuric acid | Hydrogen |
| Calcium carbonate acid | Concentrated sulphuric acid | Carbon dioxide |
| Bleaching power (CaOCl2) | Dilute sulphuric acid | Only chlorine |
संबंधित प्रश्न
Give reasons for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.
Complete the following equations :
S + conc.HNO3 →
How does sulphuric acid occur in nature?
What would you observe in the following case?
100ml of 98% sulphuric acid is kept open.
Give reason for the following:
When diluting concentrated sulphuric acid, the acid should be added to water and not water to the acid.
Give reason for the following:
Concentrated sulphuric acid must be stored in airtight bottles.
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the copper.
What property of conc. H2SO4 is made use of in the following case? Give an equation for the reaction in this case:
It’s reaction with ethanol.
State the observation for the following, when:
Concentrated sulphuric acid is added to carbon.
Identify the following:
The element having electronic configuration 2, 8, 6.
