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Statement I: p-Nitrophenol is a stronger...

Statement I: p-Nitrophenol is a stronger acid than o-nitrophenol.
Statement II: Intramolecular hydrogen bonding makes the o-isomer weaker than p-isomer.

A

Assertion is false but reason is true

B

Assertion is true but reason is false

C

Both assertion and reason are true, but reason is not a true explanation for assertion

D

Both assertion and reason are true and reason is the correct explanation for assertion

Text Solution

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The correct Answer is:
D
p-nitrophenol is more acidic than phenol because the deactivating nature of nitro group and after loosing the proton it makes more resonance stabilization as nitro group has strong deactivating nature so it attracts electron towards it and intra molecular hydrogen bonding makes o isomer weaker.
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ICSE-SAMPLE PAPER 05 (CHEMISTRY)-MULTIPLE CHOICE QUESTIONS
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  2. 1-Propanol and 2- propanol can be distinguished by:

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  3. Propanone is obtained by dehydrogenation of:

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  4. Butane nitrile can be prepared by heating

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  5. 1- Chlorobutane on reaction with alcoholic potash gives:

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  6. In the extraction of chlorine by electrolysis of brine

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  7. In the metallurgy of aluminium

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  8. The number of second nearest Na^(+) ion in NaCl structure is:

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  9. What is the coordination number of hcp and ccp?

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  10. Which of the following has regular tetrahedral structure?

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  11. Which of the following forms salt like KHX(2) ?

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  12. Diethyl ether on heating with conc. HI gives two moles of:

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  13. Ethers are quite stable towards:

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  14. Which of the following solutions shows positive deviation from Raoult'...

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  15. The osmotic pressure of a solution can be increased by

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  16. Statement I: p-Nitrophenol is a stronger acid than o-nitrophenol. St...

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  17. Assertion: SN(2), reactions proceed with inversion of configuration. ...

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  18. Statement-1 :Xenon forms fluorides. Statement-2 :5 d-orbitals are av...

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  19. Assertion: HClO(4) is a stronger acid than HClO(3). Reason: Oxidati...

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