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प्रश्न
Which of the following molecular formula corresponds to ethylbutanoate ester?
(a) C5H10O2
(b) C6H12O2
(c) C7H14O2
(d) C8H16O2
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उत्तर
C6H12O2
Ethylbutanoate ester has the molecular formula C6H12O2 (C2H5COOC3H7).
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संबंधित प्रश्न
Complete the following chemical equations: C2H5OH+O2→
Describe a test for carboxylic acid.
The organic acid present in vinegar is ______.
Choose those compounds from the following which can turn blue litmus solution red:
HCHO, CH3COOH, CH3OH, C2H5OH, HCOOH, CH3CHO
Give reasons for your choice.
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
What happens when ethanoic acid reacts with sodium hydroxide? Write equation of the reaction involved.
The substance which can produce brisk effervescence with baking soda solution is:
(a) ethanol
(b) vegetable oil
(c) vinegar
(d) soap solution(b) hydrocarbon ends directed towards the centre and ionic ends directed outwards
In a soap micelle, the soap molecules are arranged radially with the hydrocarbon ends, i.e. hydrophobic, directed towards the centre; and, ionic ends, i.e. hydrophilic, directed outwards.
The next higher homologue of ethanoic acid is ______.
Name the reducing agent used to convert acetic acid into ethanol.
What do you observe when acetic acid is added to ethyl alcohol in the presence of sulphuric acid?
On adding NaHCO3 to acetic acid, a gas is evolved which turns lime water milky due to the formation of:
(1) Calcium bicarbonate
(2) Calcium hydroxide
(3) Calcium carbonate
(4) Calcium acetate
What is the main constituent of vinegar?
Identify the term or substance based on the descriptions given below:
Ice like crystals formed on cooling an organic acid sufficiently.
Ethanoic acid _________.
Write the molecular formula of the given compound.
Ethanoic acid
Ester is a sweet-smelling compound.
Write the answers to the questions by observing the following figure.
- Write the chemical reaction shown in the figure above in the form of a balanced equation.
- Write the name of the gas coming out of the large test tube in the above chemical reaction.
- Why do small bubbles appear in the small test tube?
- What is the change in colour of lime water?
Mineral acids are stronger acids than carboxylic acids because
- mineral acids are completely ionised
- carboxylic acids are completely ionised
- mineral acids are partially ionised
- carboxylic acids are partially ionised
Shristi heated Ethanol with a compound A in presence of a few drops of concentrated sulphuric acid and observed a sweet smelling compound B is formed. When B is treated with sodium hydroxide it gives back Ethanol and a compound C.
- Identify A and C
- Give one use each of compounds A and B.
- Write the chemical reactions involved and name the reactions.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
