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Oxyacids of Phosphorus

Assertion :Th...

Question

Assertion :There is a very little difference in acidic strengths of $H_{3} P O_{4}, H_{3} P O_{3}$ and $H_{3} P O_{2} .$ Reason: Number of unprotonated oxygen $(= O)$ responsible for increase of acidic strength due to inductive effect remains the same.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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C

Assertion is correct but Reason is incorrect

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D

Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
There is a very little difference in acidic strengths of $H_{3} P O_{4}, H_{3} P O_{3}$ and $H_{3} P O_{2}$ because number of unprotonated oxygen $(= O)$ responsible for increase of acidic strength due to inductive effect remains the same.

So, Reason is the correct explanation for Assertion
Hence, Option "A" is the correct answer.

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Similar questions

Q. Assertion :There is a very little difference in acidic strengths of

H_{3} P O_{4}

H_{3} P O_{3}

H_{3} P O_{2}

. Reason: The number of unprotonated oxygen responsible for an increase of acidic strength due to inductive effect remains the same.

Read the above assertion and reason and choose the correct option regarding it.

Q. Assertion: The compressibility factor for

H_{2}

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

H e

can be derived from Van der Waal's equation.

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

Assertion (A) p-nitrophenol is more acidic than phenol.
Reason (R) Nitro group helps in the stabilisation of the phenoxide ion by dispersal of negative charge due to resonance.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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