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प्रश्न
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.
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उत्तर
Concentrated sulphuric acid acts as a dehydrating agent in this reaction.
\[\ce{\underset{Ethanol}{C2H5OH} ->[conc.H2SO4][160^\circ C-170^\circ C]\underset{Ethene}{C2H4}}\]
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संबंधित प्रश्न
Give reasons for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.
How does sulphuric acid occur in nature?
How are the following conversions brought about? Give equation and condition:
Sulphur trioxide to sulphur acid.
How are the following conversion brought about? Give equation and condition:
Aqueous lead nitrate to lead sulphate.
How will you distinguish between conc. HCl and conc. H2SO4?
Fill in the blank with appropriate word/words :
Oil of Vitriol is ___________
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the sugar.
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the copper.
Some properties of sulphuric acid are listed below. Choose the property A, B, C or D which is responsible for the reactions (i) to (v). Some properties may be repeated:
- Typical acid
- Dehydrating agent
- Non-volatile acid
- Oxidizing agent
- \[\ce{C12H22O11 + nH2SO4 -> 12C + 11H2O + nH2SO4}\]
- \[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\]
- \[\ce{NaCl + H2SO4 -> NaHSO4 + HCl}\]
- \[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
- \[\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2}\]
The following is the typical property of dilute acid. Complete it by inserting suitable words:
\[\ce{Active metal + Acid -> \underline{\phantom{.......}} + \underline{\phantom{.......}}}\]
