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प्रश्न
Write the characteristics of ethanol.
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उत्तर
- It is colourless liquid at room temperature and
- Its boiling point is 78 °C.
- It is soluble in water in all proportions.
- Its aqueous solution is neutral.
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संबंधित प्रश्न
Write the molecular formula of ethanol.
The next homologue of C2H5OH is ______.
What happens when ethanol is heated with concentrated sulphuric acid at 170°C? Write the equation of the reaction which takes place.
When ethanol is heated with concentrated sulphuric acid at 170°C, it gets converted into ethene. In this reaction, concentrated sulphuric acid acts as:
(a) oxidising agent
(b) catalyst
(c) dehydrating agent
(d) reducing agent
The usual disease caused by the excessive drinking of alcohol over a long period of time is:
(a) diabetes
(b) cataract
(c) cirrhosis
(d) arthritis
An organic compound 'P' is a constituent of wine. 'P' on reacting with acidified K2Cr2O7 forms another compound 'Q'. When a piece of sodium is added to 'Q' a gas 'R' evolves which burns with a pop sound. Identify P, Q and R and write the chemical equations of the reactions involved.
In a tabular form, differentiate between ethanol and ethanoic acid under the following heads:
(i) Physical state
(ii) Taste
(iii) NaHCO3 test
(iv) Ester test
How does ethanol reacts with
(a) Metallic sodium
(b) Acetic acid
(c) Conc.H2S04
The product formed when ethene gas reacts with water in the presence of sulphuric acid is ______.
Give the structural formula of the following:
Ethanoic acid
From the given list, name the compound with –COOH as part of its structure.
How would you convert ethene into ethane?
Answer the following question.
Write the chemical formula and name of the compound which is the active ingredient of all alcoholic drinks. List its two uses.
Write the chemical equation and name of the product formed when this compound reacts with -
(i) Sodium metal
(ii) hot concentrated sulphuric acid
Draw the electron dot structure of ethyne and also draw its structural formula
Look at below figure and answer the following questions.
- What change would you observe in the calcium hydroxide solution taken in tube B?
- Write the reaction involved in test tubes A and B respectively.
- If ethanol is given instead of ethanoic acid, would you expect the same change?
- How can a solution of lime water be prepared in the laboratory?
Name the compound formed when ethanol is heated at 443 K in the presence of conc. \[\ce{H2SO4}\] and draw its electron dot structure.
State the role of conc. \[\ce{H2SO4}\] in the reaction.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balance chemical equation of the following reaction:
Combustion of ethanol.
