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Hydroxy Compounds and Ethers 1 Mark Creative Question Paper With Answer Key

12th Standard

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Chemistry

Time : 00:15:00 Hrs
Total Marks : 15

     Multiple Choice Question

    15 x 1 = 15
  1. Which among the following alkene on acid hydration will produce tertiary butyl alcohol?

    (a)

    \({ CH }_{ 3 }-\underset { \overset { | }{ { CH }_{ 3 } } }{ C } ={ CH }_{ 2 }\)

    (b)

    CH3-CH=CH2

    (c)

    \({ CH }_{ 3 }-\underset { \overset { || }{ { CH }_{ 2 } } }{ CH } \)

    (d)

    CH3-CH2-CH=CH-CH3

  2. Pick out the odd one among the following.

    (a)

    CH3 - CH - OH - CH3

    (b)

    \({ CH }_{ 3 }{ CH }_{ 2 }-\underset { \overset { | }{ { CH }_{ 3 } } }{ CH } -OH\)

    (c)

    (CH3)3 - C - OH

    (d)

    C6H5 - CH - OH - C2H5

  3. Which one of the alcohol cannot be prepared by grignard reagent?

    (a)

    Methanol

    (b)

    ethanol

    (c)

    iso propyl alcohol

    (d)

    phenyl methanol

  4. Which among the following statement are correct with regard to alkyl halides?

    (a)

    Alkyl halides on heating with aq NaOH gives alcohols

    (b)

    10 alkyl halides proceed by SN2 mechanism

    (c)

    20 and 30 alkyl halides undergo substitution by SN1 mechanism

    (d)

    all the above

  5. Which among the following reagent is not used to differentiate ethanol and phenol?

    (a)

    neutral FeCl3

    (b)

    C6H5N2CI

    (c)

    NaOH

    (d)

    anhy ZnCl2

  6. Which one of the following alcohols on oxidation gives carboxylic acid with lesser number of carbon atoms?

    (a)

    (CH3)2-CH- CH2OH

    (b)

    CH3CH2CHOHCH3

    (c)

    CH3-(CH2)3-CH2OH

    (d)

    both (a) and (c)

  7. An organic compound 'A' reacts with methyl magnesium chloride followed by hydrolysis to form 'B'. 'B' gives a blue colour with Victor Meyers test. Identify A and B respectively.

    (a)

    acetaldehyde, tert butyl alcohol

    (b)

    acetone, iso propyl alcohol

    (c)

    acetaldehyde, isopropyl alcohol

    (d)

    acetone, ethanol

  8. Which one of the following would not react with cone. HCI and anhy. ZnCl2 at room temperature?

    (a)

    (CH3)3COH

    (b)

    (CH3)2CHOH

    (c)

    \({ CH }_{ 3 }-{ CH }_{ 2 }-\underset { \overset { | }{ { CH }_{ 3 } } }{ CH } -OH\)

    (d)

    CH3 - CH2 - CH2 - OH

  9. Glycol \(\overset { 773K }{ \longrightarrow } \) 'A'. Identify 'A' _______.

    (a)

    (b)

    \(\overset { { CH }_{ 3 } }{ \underset { CHO }{ | } } \)

    (c)

    (d)


  10. The above reaction is called ______.

    (a)

    Gattermann reaction

    (b)

    Williamson ether synthesis

    (c)

    Swern's reaction

    (d)

    Riemer tiemann reaction

  11. Which among the following sets of reactants will produce anisole?

    (a)

    HCHO, RMgX

    (b)

    (c)

    C6H5ONa, CH3Br

    (d)

    C6H5CH3, CH3CoCI

  12. Which has the highest boiling point?

    (a)

    CH3CH3

    (b)

    CH3OH

    (c)

    C2H5OH

    (d)

    C3H5

  13. Which is soluble in H2O?

    (a)

    Phenol

    (b)

    Alkanes

    (c)

    Alcohols

    (d)

    Alkenes

  14. Ethyl alcohol cannot be used as a solvent for CH3MgI because ______.

    (a)

    CH3MgI reacts with alcohol giving methane

    (b)

    the reaction between them is explosive in natrue

    (c)

    CH3MgI is converted to C2H5MgI

    (d)

    alcohol is immiscible with CH3MgI

  15. Which is optically active?

    (a)

    n-butyl alcohol

    (b)

    isobutyl alcohol

    (c)

    2-butanol

    (d)

    t-butyl alcohol

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