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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Assertion: Phenols give o- and p-nitrophenol on nitration with conc. HNOX3 and HX2SOX4 mixture. Reason: –OH group in phenol is o–, p– directing.

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प्रश्न

Assertion: Phenols give o- and p-nitrophenol on nitration with conc. \[\ce{HNO3}\] and \[\ce{H2SO4}\] mixture.

Reason: –OH group in phenol is o–, p– directing.

विकल्प

  • Assertion and reason both are correct and reason is correct explanation of assertion.

  • Assertion and reason both are wrong statements.

  • Assertion is correct statement but reason is wrong statement.

  • Assertion is wrong statement but reason is correct statement.

  • Both assertion and reason are correct statements but reason is not correct explanation of assertion.

MCQ
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उत्तर

Assertion is wrong statement but reason is correct statement.

Explanation:

Phenols give o, p-nitrophenol on nitration with dil. \[\ce{HNO3}\] and with cone.

• \[\ce{HNO3}\], 2, 4, 6-trinitrophenol is formed.

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अध्याय 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [पृष्ठ १६४]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 70 | पृष्ठ १६४

संबंधित प्रश्न

Name the following compound according to the IUPAC system.

\[\begin{array}{cc}
\phantom{..................}\ce{CH2OH}\\
\phantom{.........}|\\
\ce{CH3 - CH2 - CH - CH - CH - CH3}\\
\phantom{.........}|\phantom{...................}|\\
\phantom{.............}\ce{CH2Cl}\phantom{..........}\ce{CH3}\phantom{}
\end{array}\]


Name the following compound according to the IUPAC system.


Name the following compound according to the IUPAC system.

\[\begin{array}{cc}
\ce{H2C = CH - CH - CH2 - CH2 - CH3}\\
|\phantom{...............}\\
\ce{OH}\phantom{............}
\end{array}\]


Write the IUPAC name of the following compound:

C6H5 – O – C7H15(n−)


Give the IUPAC name of the following ether:

O2N – C6H4 – OCH3(p)


Give the IUPAC name of the following ether:


Natalite is a mixture of

(a) diethyl ether and methanol

(b) diethyl ether and ethanol

(c) dimethyl ether and methanol

(d) dimethyl ether and ethanol


3-Methylbutane-2-ol on heating with HI gives ______


How is phenol converted into the following?

picric acid


Propanoic acid to ethylamine.


Ethyl alcohol is industrially prepared from ethylene by:


When ethyl alcohol reacts with acetic acid, the products formed are:


IUPAC name of the compound is:

\[\begin{array}{cc}
\ce{CH3-CH-OCH3}\\
|\phantom{....}\\
\ce{CH3}\phantom{..}
\end{array}\]


Write the IUPAC name of the compound given below.

\[\begin{array}{cc}
\phantom{}\ce{CH3 - CH2 - C = C - OH}\\
\phantom{........}|\phantom{....}|\phantom{}\\
\phantom{..............}\ce{CH3 CH2OH}
\end{array}\]


Write the IUPAC name of the following compound.


Write a chemical reaction for the following conversion:

Acetic acid into ethyl alcohol.


Write structural formulae for:

p-Nitrophenol


Write IUPAC names of the following compounds: 

\[\begin{array}{cc}
\phantom{...............}\ce{CH3}\\
\phantom{.............}|\\
\ce{CH3 - CH - CH - C - CH3}\\
|\phantom{......}|\phantom{......}|\\
\phantom{...}\ce{CH3\phantom{...}OH\phantom{...}CH3}\\
\end{array}\] 


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