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Question

Assertion: 1 mole O3(ozone)=N molecule of O3(ozone)=3N atoms of O(oxygen)=48g

Reason: A mole is the amount of matter that contains as many as objects as the number of atoms exactly in 12 g C-12 (N = Avogadro number).

  1. Assertion is correct but Reason is incorrect.
  2. Assertion is incorrect but Reason is correct.
  3. Both Assertion and Reason are correct and Reason is correct explanation of Assertion
  4. Both Assertion and Reason are correct but Reason is not correct explanation of Assertion

A
Assertion is incorrect but Reason is correct.
B
Both Assertion and Reason are correct and Reason is correct explanation of Assertion
C
Assertion is correct but Reason is incorrect.
D
Both Assertion and Reason are correct but Reason is not correct explanation of Assertion
Solution
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1 mole of ozone weighs 48 g (molecular weight). It contains Avogadro number (N) of molecules. Each ozone molecule contains 3 oxygen atoms. Hence, 1 mole of ozone contains 3N atoms of oxygen.

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Similar Questions
Q1
Assertion: 1 mole O3(ozone)=N molecule of O3(ozone)=3N atoms of O(oxygen)=48g

Reason: A mole is the amount of matter that contains as many as objects as the number of atoms exactly in 12 g C-12 (N = Avogadro number).

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Q2

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
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(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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Q3
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Q4

Assertion (A) o-nitrophenol is less soluble in water than the m- and p-isomers.
Reason (R) m and p-nitrophenols exist as associated molecules.
(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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Q5

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