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:
CH3CHO→PdH2 (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≡CH→O3/NAOHX→Zn/CH3COOHY 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
CH3CH2Cl→NaCNX →Ni/H2Y→Acetic anhydrideZ
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 →PBr3X→Alc.KOHY→(ii)H2O, heat(i) H2SO4, room temperatureZ
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 →160-180°Cconc. H2SO4 X →Br2 Y →2. NaNH21. Alc. KOH 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
Phenol→Zn-dustX→Anhy.AlCl3CH3ClY→Alk.KMnO4Z
toluene
benzaldehyde
benzoic acid
benzene
The product in the reaction is:
C2H5OH →P+I2A→EtherMgB→HCHOC→H2OD
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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