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प्रश्न
On adding acetic acid to sodium hydrogen carbonate in a test tube, a student observes
(A) no reaction
(B) a colourless gas with pungent smell
(C) bubbles of a colourless and odourless gas
(D) a strong smell of vinegar
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उत्तर
Acetic acid reacts with sodium hydrogen carbonate to form the salt sodium acetate and water with the evolution of CO2. This CO2 is a colourless, odourless gas. Thus, the student will observe bubbles of colourless and odourless gas.
The Correct Answer is C
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संबंधित प्रश्न
While studying saponification reaction, a student measures the temperature of the reaction mixture and also finds its nature using blue/red litmus paper. On the basis of his observations the correct conclusion would be
(A) the reaction is exothermic and the reaction mixture is acidic.
(B) the reaction is endothermic and the reaction mixture is acidic.
(C) the reaction is endothermic and the reaction mixture is basic.
(D) the reaction is exothermic and the reaction mixture is basic.
Identify the term or substance based on the descriptions given below
Ice like crystals formed on cooling an organic acid sufficiently.
Write the name and chemical formula of the simplest organic acid.
Which of the following will give brisk effervescence with sodium hydrogen carbonate and why?
CH3COOH, CH3CH2OH
Name the product formed and give the appropriate chemical equation for the following:
Sodium reacting with ethyl alcohol.
Why is Soda lime used not only NaOH?
Name the first four members of alphatic carboxylic acid.
Ester is a sweet-smelling compound.
What happens when a small piece of sodium is dropped in ethanol? Write the equation for this reaction.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
