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Why Do Acids Not Show Acidic Behaviour in the Absence of Water? - Science

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प्रश्न

Why do acids not show acidic behaviour in the absence of water?

टीपा लिहा

उत्तर १

Acids do not show acidic behaviour in the absence of water because the dissociation of hydrogen ions from an acid occurs only in the presence of water. It is the hydrogen ions that are responsible for the acidic behaviour.

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उत्तर २

Acids ionise only in the presence of water to give ions.
\[\ce{HCl + H2O -> H3O+ + Cl-}\]
However, in the absence of water, acids do not ionise to give H3O+ ions and therefore, do not behave as acids.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Acids, Bases and Salts - Exercise 1 [पृष्ठ ६७]

APPEARS IN

लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 2 Acids, Bases and Salts
Exercise 1 | Q 30.1 | पृष्ठ ६७
एनसीईआरटी Science [English] Class 10
पाठ 2 Acids, Bases and Salts
Exercises | Q 8 | पृष्ठ ३५

संबंधित प्रश्‍न

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Why does distilled water not conduct electricity, whereas rain water does?


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(a) H2
(b) CO
(c) CO2
(d) SO2


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(a) methyl orange


What colours do the following indicators turn when added to an acid (such as hydrochloric acid)?
methyl orange


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Acids produce.......................... ions on dissolving in water.


How will you test for the presence of this gas?


What happens when carbon dioxide gas is passed through lime water for a short time?

Write equations of the reactions involved.


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Choose the correct option from given alternative:
When a small amount of acid is added to water, the phenomena which occur are:
(A) Dilution
(B) Neutralization
(C) Formation of H3O+ ions
(D) Salt formation


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Blue litmus solution is added to two test tubes A and B containing dilute HCl and NaOH solution respectively. In which test tube a colour change will be observed? State the colour change and give its reason.


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  1. Ionisation
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  3. Dilution
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