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प्रश्न
A student puts a drop of acetic acid first on a blue litmus paper and then on a red litmus paper. He would observe that
(A) the red litmus paper turns colourless and there is no change in the blue litmus paper.
(B) the red litmus paper turns blue and the blue litmus paper turns red.
(C) there is no change in the red litmus paper and the blue litmus paper turns red.
(D) there is no change in the blue litmus paper and the red litmus paper turns blue.
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उत्तर
Being an acid, acetic acid turns blue litmus paper red. Thus, on putting a drop of acetic acid on blue and red litmus papers, there is no change in the red litmus paper, while the blue litmus paper turns red.
Hence, the correct option is C.
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संबंधित प्रश्न
Complete the following chemical equations :CH3COOH + Na2CO3 →
Give a reason for Conductivity of dilute hydrochloric acid is greater than that of acetic acid
Give the common names and IUPAC names of the following compounds of CH3COOH.
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\\
|\\
\ce{CH3 -C -CH3}\\
|\\
\ce{CH3}
\end{array}\]
Give two tests to show that CH3COOH is acidic in nature ?
Explain the following reaction with an example.
Saponification
What are catalysts?
Give the balanced chemical equation of the following reaction:
Evolution of carbon dioxide by the action of ethanoic acid with NaHCO3.
Write an equation showing saponification.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
