Williamson's synthesis reaction, among the following is -
>CH3CH3C=O→conc. HClZn-HgCH3-CH2-CH3
CH3-CHO→-H2ODil. NaOHCH3-CH=CH-CHO
C2H5I + C2H5ONa→C2H5.O.C2H5 + NaI
HCHO→NaOHHCOONa + CH3OH
The compound that will not form a yellow precipitate on heating with an alkaline solution of iodine is:
CH3CH(OH)CH3
The incorrect reaction among the following is-
n-Propyl alcohol and iso-propyl alcohol can be distinguished by -
PCl5
reduction
oxidation with potassium dichromate
ozonolysis
The products of combustion of an aliphatic thiol (RSH) at 298K are:-
CO2(g), H2O(g)andSO2(g)
CO2(l), H2O(l)andSO2(g)
CO2(g), H2O(l)andSO2(l)
Among the following sets of reactants which one produces anisole?
CH3CHO, RMgX
C6H5OH, NaOH, CH3I
C6H5OH, neutral FeCl3
C6H5-CH3, CH3COCl, AlCl3
Which one is formed when sodium phenoxide is heated with ethyl iodide?
Phenetole
Ethyl phenyl alcohol
Phenol
None of the above
Which reagent will convert propionic acid to propanol-1?
KMnO4
LiAlH4
Cr2O3
MnO2
Butan-2-ol is a-
Primary alcohol
Secondary alcohol
Tertiary alcohol
Primary alcohols can be obtained from the reaction of the RMgX with:
HCHO
H2O
CO2
CH3CHO
A compound X with molecular formula C3H8O can be oxidised to a compound Y with the molecular formula C3H6O2. X is most likely to be:
Aldehyde
Ketone
Identity Z in the sequence of reactions-
CH3CH2CH=CH2 →HBr/H2O2Y→C2H5ONaZ
CH3-(CH2)3-O-CH2CH3
(CH3)2CH2-O-CH2CH3
CH3(CH2)4-O-CH3
CH3CH2-CH(CH3)-O-CH2CH3
The reaction of ethyl formate with an excess of CH3MgI followed by hydrolysis gives-
n-Propyl alcohol
Ethanol
Isopropyl alcohol
Propanal
Propene, CH3-CH=CH2 can be converted into 1-propanol by oxidation. Indicate which set of reagents amongst the following is ideal to effect the above conversion?
KMnO4(alkaline)
Osmium tetroxide (OsO4/CH2Cl2)
B2H6 and alk H2O2
O3/Zn
In a reaction,
CH2=CH2→acidHypochlorousM→R
M=molecules, R=reagent. M and R are
CH3CH2Cl and NaOH
CH2Cl. CH2OH and aq. NaHCO3
CH3CH2OH and HCl
and heat
Lucas reagent is-
conc. HCl and anhy. ZnCl2
conc. HNO3 and anhy. ZnCl2
conc. HCl and hydrous ZnCl2
conc. HNO3 and hydrous ZnCl2
The general molecular formula, which represents the homologous series of alkanols is
CnH2nO2
CnH2nO
CnH2n+1O
CnH2n+2O
R-COOH→RCH2OH. This reduction cannot be done by:
NaBH4
Na + alcohol
All of the above
What mass of isobutylene is obtained from 37 g of tertiary butyl alcohol by heating with 20% H2SO4 at 363 K, if the yield is 65%?
16 g
18.2 g
20 g
22 g
Which of the following reaction is used for preparation of glycol industrially?
none of the above
The number of primary alcohol isomers of C5H11OH is -
5
4
2
3
Phenol is less soluble in water. It is due to-
Non-polar nature of phenol
Acidic nature of -OH group
Non-polar hydrocarbon part in it
The decreasing order of boiling points of 1°, 2°, and 3° alcohol is-
1°>2°>3°
3°>2°>1°
2°>1°>3°
The boiling points of thio-ethers are .... than those of ether.
lesser
equal
higher
none of these
The most effective reagent used to converts but-2-enal to but-2-enol is-
H2/Pt
K2Cr2O7/H2SO4
23g of sodium react with CH3OH to give-
1 mole of O2
1/2 mole of H2
1 mole of H2
Phenol and benzoic acid can be distinguished by:
Aqueous NaHCO3
Aqueous NaNO3
Aqueous NaOH
Conc. H2SO4
Glycerol on oxidation with conc HNO3 gives:
tartronic acid
mesoxalic acid
oxalic acid
glyceric acid
Ethyl Chloride is converted into diethyl ether by-
Wurtz synthesis
Grignard reaction
Perkin's reaction
Williamson's synthesis
Which is an excellent antiseptic?
Benzyl alcohol
Benzaldehyde
Acetic acid
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