The dehydration of neo-pentanol gives mainly-
Nne of the above
Which one of the following on oxidation gives a ketone?
Primary alcohol
Tertiary alcohol
In the following sequence the product (C) is:
CH3CHOH2→Pd (A) Na→(B) CH3I→(C)
alcohol
alkene
Proof spirit contains about:
48% alcohol by mass
10% alcohol by mass
5% alcohol by mass
90% alcohol by mass
The correct order of solubility of 1°,2° and 3° alcohol in water is-
3°>2°>1°
1°>2°>3°
3°>1°>2°
None of the above
Which of the following is an alkoxide?
The value of C-O-C angle in ether molecule is :
180°
150°
90°
110°
Ethyl alcohol is also known as:
spirit of wine
methyl carbinol
grain alcohol
all of these
The products formed in the following reaction, C6H5-O-CH3 + HI Heat→ are-
C6H5OH and CH3I
C6H5I and CH3OH
C6H5CH3 and HOI
C6H6 and CH3OI
The formula of phenoxy benzene is-
C6H5C6H5
C6H5-O-C6H5
C6H5-O-C6H6
CH≡CHO3/NAOH→XZn/CH3COOH→Y is:
CH2OH-CH2OH
2
CH3CH2OH
CH3COOH
3
CH3OH
Which of the following reacts with water
CHCl3
CCl4
CCl3CHO
CH2ClCH2Cl
The order of decreasing acidic character of cyclohexanol (I), acetic acid (II), 2,4,6-trinitrophenol (III), and phenol (IV),is -
III>II>IV>I
II>III>I>IV
II>III>IV>I
III>IV>II>I
Picric acid and benzoic acid can be distinguished by:
Aqueous NaHCO3
Aqueous NaOH
Aqueous FeCl3
Aqueous Na2CO3
CH3CH2ClNaCN→X Ni/H2→YAcetic anhydride→Z
In the above reaction sequence, Z is
CH3CH2CH2NHCOCH3
CH3CH2CH2NH2
CH3CH2CH2CONHCH3
CH3CH2CH2CONHCOCH3
The commonly used dehydrating agent in the preparation of an ester is :
P2O5
Anhydride CaCl2
Anhydride AlCl3
Conc. H2SO4
Oxidation of allylic alcohol, (CH2=CH-CH2OH) gives a mixture of oxalic acid and formic acid. If this oxidation is done in presence of bromine. One would expect only:
Oxalic acid
Formic acid
Succinic acid
Acrylic acid
Consider the following reaction,
Ethanol PBr3→XAlc.KOH→Y(i) H2SO4, room temperature→(ii)H2O, heatZ
The product Z is
CH2=CH2
CH3CH2OCH2CH3
CH3CH2OSO3H
Which of the following are known as mercaptans?
Thio-alcohols
Thio-ethers
Thio-aldehydes
Thio-acids
Glycol condenses with ketones to give:
Cyclic acetals
Salol is used as:
antiseptic
antipyretic
both 1. and 2.
none of these
CH3-CH2-CH2OH conc. H2SO4→160-180°C X Br2→ Y 1. Alc. KOH→2. NaNH2 Z
Z in the above reaction is -
Ethyl propanoate on reduction with LiAlH4 yields:
Methanol
Ethanol and Propanol
Propane
Mixture of ethanol and methanol
The most acidic alcohol among the following is -
Ethanol
Isopropyl alcohol
t-Butyl alcohol
PhenolZn-dust→XCH3Cl→Anhy.AlCl3YAlk.KMnO4→Z
toluene
benzaldehyde
benzoic acid
benzene
The product in the reaction is:
C2H5OH P+I2→AMg→EtherBHCHO→CH2O→D
propanal
butanal
n-butanol
n-propanol
The compund that reacts fastest with Lucas reagent (at room temperature) is -
Butan-1-ol
Butan-2-ol
2-Methyl propan-1-ol
2-Methyl propan-2-ol
An alcohol that give CH3COOH and CH3CH2COOH upon oxidation is:
CH3CH2CH2OH
(CH3)2C(OH)CH2CH3
CH3(CH2)2CHOH
CH3CH(OH)CH2CH2CH3
R-CHO + H2 →RCH2OH,
The catalyst used in the above reaction is -
Ni
Pd
Pt
All of above.
Methyl alcohol on oxidation with acidified K2Cr2O7 gives:
CH3COCH3
CH3CHO
HCOOH
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