CBSE Questions for Class 12 Medical Chemistry Alcohols, Phenols And Ethers Quiz 1 - MCQExams.com

The IUPAC name of 
1509977_e7e0eddc908344c9a95d6bb030665024.jpg
Identify:
1493187_f44c45eaa7ca40fb87ac0ecbdfaedd37.png
Which of the following is the best set of reagents to perform the above conversion? 
1508177_9faa90cfabb241a58edbb6c9844b41a9.PNG
  • $$ThO_{2},\Delta $$
  • $$H_{3}PO_{4},\Delta $$
  • $$conc.H_{2}SO_{4},\Delta $$
  • $$Al_{2}O_{3},\Delta $$
Major product of the following reaction is 
1509346_7ce7f6fe8943464b979e07182c7ff0e3.PNG
The order of melting point of ortho, para, meta-nitrophenol is
  • $$o\gt m\gt p$$
  • $$p\gt m\gt o$$
  • $$m\gt p\gt o$$
  • $$p\gt o\gt m$$
The IUPAC name of 
1509978_c0aba69af149482b801b19898d6a2318.jpg
Propene is subjected to acidic hydration and hydroboration oxidation in two different experiments. The products obtained respectively are
  • n-propyl alcohol, n-propyl alcohol
  • isopropyl alcohol, isopropyl alcohol
  • n-propyl alcohol, isopropyl alcohol
  • isopropyl alcohol, n-propyl alcohol
What is the major product A?
1501665_66e27a59261946a7b9299069221736be.PNG
What is the reagent used and appropriate temperature required to prepare ethene from ethyl alcohol?
  • Dilute $$ H _ { 2 } S O _ { 4 } , 160 ^ { \circ } C $$
  • Concentrated $$ H _ { 2 } S O _ { 4 } , 170 ^ { \circ } C $$
  • Dilute $$ H C l , 170 ^ { \circ } C $$
  • Concentrated $$ H C l , 160 ^ { \circ } C $$
Dehydration of alcohol to alkene involves all the steps, except:-
  • combination with proton
  • formation of cabonium ion by removal of water molecule
  • loss of proton from carbonium ion from the $$ \beta $$-position
  • loss of proton from carbonium iron from $$ \alpha $$-position
In which of the following the experimental dipole moment is more than what is expected from theory?
  • All of these
The sum of locants of the compound is _________
1566182_f2a5f156be59458aad990e9db49f9d21.PNG
  • 10
  • 8
  • 9
  • 7
Which of the following is correct for acidic strength:-
1528523_27410b5ed7ee495fa37e7558ea3e9a48.PNG
  • B and C
  • C and D
  • B and D
  • A,B and C
Examine the following structures:-
$$(A)$$ $$(CH_3)_3C-OH$$
$$(B)$$ $$(CH_3)_3C-NH_2 $$
Which of the following statement is correct ?
  • A is tertiary alcohol while $$ B $$ is tertiary amine.
  • A is primary alcohol while $$ B $$ is primary amine.
  • $$ \mathrm{A} $$ is tertiary alcohol while $$ \mathrm{B} $$ is primary amine.
  • A is primary alcohol while $$ B $$ is tertiary amine.
In the following reaction A and B respectively are
1559304_0732956755bc44f79d77a30dc0c40e49.JPG
  • $${ 3 }^{ \circ }$$ and $${ 1 }^{ \circ }$$ alcohols
  • $${ 3 }^{ \circ }$$ and $${ 2 }^{ \circ }$$ alcohols
  • Both $${ 2 }^{ \circ }$$ alcohols
  • $${ 2 }^{ \circ }$$ and $${ 1 }^{ \circ }$$ alcohols
.
1547149_4362882c4e064ebd952fe44464c934ae.png
  • both A and B will form
Which of the following will be the correct product of reaction?
1518041_33b47f565d1542ac9669482170847122.png
The major product in the acid catalysed dehydration of 2-pentanol is 
  • Pent-1-ene
  • Pent-2-ene
  • Pent-3-ene
  • Methylbut-1-ene
$$Compound( Refer \ Image)\xrightarrow [ Conc.{ H }_{ 2 }{ SO }_{ 4 } ]{ \triangle  } $$

The major product obtained in the above reaction is:
1528534_d3e3dee3b51c4f61838708001dfd160d.PNG
Which of the following is most reactive toward acid catalyzed dehydration? 
The IUPAC name of the compound is
1186044_876e501ae9264498a3c0420d02ab0648.JPG
  • 1, 1-Dimethyl-3-cyclohexanol
  • 1, 1-Dimethyl-3-hydroxycyclohexane
  • 3,3-Dimethyl-1-cyclohexanol
  • 3, 3-Dimethyl-1-hydroxycyclohexane
Ethers show dipolar nature due to the presence of ______.
  • central C atom
  • central O atom
  • central N atom
  • none of these
State, whether the following statements are True or False:
Phenols having electron withdrawing group or groups attached to benzene ring are more acidic than phenol itself.
  • True
  • False
State, whether the following statements are True or False:
$$C_2HSOC_2H5$$ is a linear molecule having zero dipole moment.
  • True
  • False
Cresols are 
  • Hydroxy toluenes
  • Dihydric phenols
  • Trihydric phenols
  • Trihydric alcohols
IUPAC name of tertiary butyl alcohol is
  • Butan-1-ol
  • Butan-2-ol
  • 2-methyl propan-1-ol
  • 2-methyl propan-2-ol
Wood spirit is known as 
  • Methanol
  • Ethanol
  • Acetone
  • Benzene
The IUPAC name of picric acid is
  • $$2,4,6-$$trinitrophenol
  • $$2,4,6-$$trinitrobenzoic acid
  • $$4-$$nitrophenol
  • None of these
The $$IUPAC$$ name of compound $$\begin{matrix} \quad \quad O{ CH }_{ 3 } \\ | \\ { CH }_{ 3 }-{ CH }_{ 2 }-CH-{ CH }_{ 2 }-OH \end{matrix}$$ is
  • $$2-$$methoxy$$-1-$$butanol
  • $$3-$$methoxy$$-1-$$butanol
  • $$2-$$methoxy$$-1-$$butanol
  • $$1,2-$$methoxy$$-$$butanol
The structural formula of cyclohexanol is
3-pentanol is a:
  • Primary alcohol
  • Secondary alcohol
  • Tertiary alcohol
  • None of these
General formula of primary alcohol is 
  • $$>CHOH$$
  • $$-CH_2OH$$
Which of the following is phenolic 
  • Phthalic acid
  • Phosphoric acid
  • Picric acid
  • Phenylacetic acid
Which one of the following is not a correct statement?
  • Phenol is a much weaker acid than benzoic acid
  • The reaction of ferric chloride with phenol to give violet colour is characteristic of ethanol group
  • Phenol is a stronger acid than ethanol but weaker than benzyl alcohol
  • Picric acid does not contain a COOH group.
Find the structure of product.
1409024_06590a0327bc4515b110b3ca2c56f56a.jpg
Which of the following is not the product of dehydration of above compound?
1388882_2c75d7ca0e2a4fa9a0545001796d5992.png
Reactivity of given alcohols for acidic dehydration can be explained by ______________
1389995_0a2ac991ed934e219d1a754252ed60d6.png
  • Carbocation stability
  • Product stability
  • Carnbanion rearrangement
  • Acidic strength of alcohols
In the following reaction the major product is:
1393598_7c89b3a9e8ea46529bfcaf5d7ee051cd.png
The major product "P" obtained in the given reaction is:
1409287_0c0699fbfe324c1ca9438708a10ae4e4.jpg
Among the following the most stable compound is
  • cis-1,2-cyclohexanediol
  • trans-1,2-cyclohexanediol
  • cis-1,3-cyclohexanediol
  • trans-1,3-cyclohexanediol
Which has dipole moment?
  • p-dimethoxybenzene
  • p-dichlorobenzene
  • trans 1,2-dichloroethene
  • $${ BF }_{ 3 }$$
Correct name of the given compound is
1406957_c191058d45204105bd953fb07cf321ab.png
  • $$(2R, 3E) 4$$-bromo pentan-$$2$$-ol
  • $$(2S, 3E) 4$$-bromo pentan-$$2$$-ol
  • $$(2R, 3Z) 4$$-bromo pentan-$$2$$-ol
  • $$(2S, 3Z) 4$$-bromo pentan-$$2$$-ol
Five compounds with molecular formula $${ C }_{ 4 }{ H }_{ 8 }{ Br }_{ 2 }$$. How many structures of $$X$$ are possible?
1386994_0b2d5486981d4f5c895f17a4735b4de1.JPG
  • 2
  • 3
  • 4
  • 5
Suppose your blaboratory has only $$C{H_3}OH$$ as organic compound and all the inorganic chemicals are available. How will you synthesize the following alcohols?
  • $$C{H_3} - C{H_2} - OH$$
The correct IUPAC nomenclature for the following alcohol is:
1471805_99eb5fb72d2f45998cfe476452c34e00.JPG
  • 2-ethyl-2 butanol
  • 3-methyl-3 pentanol
  • 3-ethyl-3-methyl-3 pentanol
  • 1,1 -diethylene
Which of the following is represented by general formula $$C_{n} H_{2n + 2} O$$?
  • Alcohols only
  • Both alcohols and ethers
  • Aldehydes only
  • Both aldehydes and ketones
Find the compound '$$Z$$'.
1433336_0f6c88782ed44ee586a7fa9e67159608.PNG
  • $$\rm{ CH_2=CH-CH_2-OH }$$
  • $$\rm{ CH_3-CH(OH)-CH_3 }$$
  • $$\rm{ (CH_3CH_2)CHOH }$$
  • $$\rm{ CH_3CH=CH_2 }$$
The major product is:
1489681_e1b28563d20f4c5ebed50fe3e7fe7343.png
Which of the following alcohol will have highest rate of dehydration?
Which one has minimum $$\%$$ of enol content?
0:0:1


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