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प्रश्न
When zinc powder is added to acetic acid ______________
(a) the mixture becomes warm
(b) a gas is evolved
(c) the colour of the mixture becomes yellow
(d) a solid settles at the bottom
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उत्तर
A gas is evolved.
Zn + 2CH3COOH → Zn (CH3COO)2 + H2
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संबंधित प्रश्न
You have four test tubes, A, B, C and D containing sodium carbonate, sodium chloride, lime water and blue litmus solutions respectively. Out of these the material of which test tube/ test tubes would be suitable for the correct test of acetic/ethanoic acid?
(a) only A
(b) A and B
(c) B and C
(d) A and D
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The distinctive reaction that takes place when ethanol is treated with acetic acid.
Choose the correct alternative and rewrite the following:
Acetic acid ..................
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What is the common name of methanoic acid.
Give the common names and IUPAC names of the following compounds of HCOOH.
Give the name and structural formula of one homologue of HCOOH.
Three organic compounds A, B and C have the following molecular formulae: C4H10O
Which compound contains a carboxyl group? Write its name and structural formula.
An organic compound X of molecular formula C2H4O2 gives brisk effervescence with sodium hydrogen carbonate. Give the name and formula of X.
Vinegar is a solution of about:
(a) 5 to 8 per cent ethanoic acid in alcohol
(b) 5 to 8 per cent ethanoic acid in water
(c) 50 to 80 per cent ethanoic acid in water
(d) 50 to 80 per cent ethanoic acid in alcohol
Consider the following organic compounds:
HCHO, C2H5OH, C2H6, CH3COOH, C2H5CI
Choose two compounds which can react in the presence of conc. H2SO4 to form an ester. Give the name and formula of the ester formed.
Name the product formed and give an appropriate chemical equation for the following:
Ethanol oxidised by acidified potassium dichromate.
What do you notice when acetic acid reacts with metals?
Which of the following observations is true about dilute solution of acetic acid?
(A) It smells like vinegar and turns red litmus blue
(B) It smells like onion and turns blue litmus red
(C) It smells like orange and turns red litmus blue
(D) It smells like vinegar and turns blue litmus red
Identify the term or substance based on the descriptions given below:
Hydrocarbon containing a triple bond used for welding purposes
CH3–CH2–CHO : propanal : : CH3–COOH : _______
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
How is ethanol to ethanoic acid an oxidation reaction different from the reaction in which ethanol burns in the presence of oxygen?
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
