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Byju's Answer
Standard XII
Chemistry
Stereoisomerism
Assertion: Th...
Question

Assertion: The size of a cation is larger in tetrahedral void than in octahedral void.
Reason: Cations occupy more space than anions is crystal packing.

A
Both Assertion and Reason are correct and Reason is the correct explanation of Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion
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C
Assertion is correct but Reason is not correct
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D
Assertion is not correct but Reason is correct
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E
Both Assertion and Reason are not correct
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Solution

The correct option is E Both Assertion and Reason are not correct
Octahedral void is larger in size than tetrahedral void.
Cations are generally smaller. They occupy voids instead of lattice points and hence, occupy less space.
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Assertion (A) Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R) There is a repulsion between the two bulky (- R) groups.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
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Assertion (A) Ethanol is a weaker acid than phenol.
Reason (R) Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH.
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(b) Assertion and reason both are wrong statements.
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Assertion (A) o-nitrophenol is less soluble in water than the m- and p-isomers.
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(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.
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Q.

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.
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(c) Assertion is correct statement but reason is wrong statement.
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