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प्रश्न
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.
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उत्तर
vinegar
Vinegar can produce brisk effervescence with the baking soda solution.
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संबंधित प्रश्न
Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild
Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>
Give the name and structural formula of one homologue of HCOOH.
Fill in the following blank with suitable word:
The next higher homologue of ethanol is ...............
What type to compound is CH3COOH?
What is the physical state of CH3COOH?
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
Name the functional group present in the following compound:
HCOOH
Which one of the following are the correct observations about acetic acid?
(A) It turns blue litmus red and smells like vinegar
(B) It turns blue litmus red and smells like burning sulphur
(C) It turns res litmus blue and smells like vinegar
(D) It turns red litmus blue and has a fruity smell
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 thr boilng point of acetic acid?
What type of compound is formed by the reaction between acetic acid and an alcohol?
Draw the structure formula of ethyne.
Give the balanced chemical equation of the following reaction:
Evolution of carbon dioxide by the action of ethanoic acid with NaHCO3.
A few drops of ethanoic acid were added to solid sodium carbonate. The observation made was that ______.
A student while observing the properties of acetic acid would report that this smells like ______.
Ester is formed by the reaction between ______.
Reshu by mistake forgot to label the two test tubes containing Ethanol and Ethanoic acid. Suggest an experiment to identify the substances correctly? Illustrate the reactions with the help of chemical equations.
A spatula full of sodium carbonate is taken in a test tube and 2 mL of dilute ethanoic acid is added to it.
Write a chemical equation for the reaction.
