JEE Main Chemistry - Organic Chemistry Based on Functional Group I
Exam Duration: 60 Mins Total Questions : 30
An alkyl halide can be converted into an alcohol by
- (a)
additional reactions
- (b)
elimination reaction
- (c)
dehydration reaction
- (d)
substitution reaction
When sodium is added to ethanol
- (a)
no action occurs
- (b)
only H2 gas is formed
- (c)
NaOC2H5 and O2 are formed
- (d)
NaOC2H5 and H2 are formed
When two halogen atoms are attached to the same carbon of alkane , the compound is called
- (a)
vicinal dihaloalkane
- (b)
geminal dihaloalkane
- (c)
halide of alkene
- (d)
dihalide of alkene
Correct order of boiling points for the alkyl halide is
- (a)
C2H5Cl > C2H5Br > C2H5I
- (b)
C2H5I> C2H5Br>C2H5I
- (c)
C2H5I>C2H5Cl >C2H5Br
- (d)
C2H5Br>C2H5I>C2H5Cl
Which one of the following liquids is the most viscous?
- (a)
propanol -1
- (b)
propanol - 2
- (c)
Propene -1,2,diol
- (d)
Propane-1,2,3,triol
For a given alcohol the order of reactivity of halogen acids is
- (a)
HI>HBr
- (b)
HCL
- (c)
HCl
- (d)
HI
An enzyme which brings about the conversion of starch into maltoes is
- (a)
maltase
- (b)
zymase
- (c)
invertase
- (d)
diastage
A fairly specific test for phenol is
- (a)
decolourisation of Br water
- (b)
coupling with diazonium salt
- (c)
dissolution in alkali
- (d)
decolourisation of KMnO4
Aspirin is
- (a)
acetyl salicylic acid
- (b)
4-ethoxy acetanilide
- (c)
N-acetyl -4-aminophenol
- (d)
NONE OF THE ABOVE
Consider the following alcohols
(i)\(CH_3-CH_2CH_2CH_2COH_3\)
(ii)\(CH_3-CH_2-CHOH\ CH_3\)
(iii)\(CH_3-CH-OH-CH_3\\??\quad\quad\quad|\\\quad\quad\ \ CH_3\)
The order of increasing b.p. would be
- (a)
(i),(ii) and (iii)
- (b)
(iii),(ii) and (i)
- (c)
(ii),(iii) and (i)
- (d)
None of the three
The order for the acidic strength of 1o, 2o, 3o alcohols, H2O and \(RC\equiv CH\) is
- (a)
\(RC\equiv CH>{ 3 }^{ o }>{ 2 }^{ o }>{ 1 }^{ o }>{ H }_{ 2 }O\)
- (b)
\({ 1 }^{ o }>{ 2 }^{ o }>{ 3 }^{ o }>{ H }_{ 2 }O>RC\equiv CH\)
- (c)
\({ H }_{ 2 }O>{ 1 }^{ o },{ 2 }^{ o },{ 3 }^{ o }>RC\equiv CH\)
- (d)
\({ 3 }^{ o }>{ 2 }^{ o }>{ 1 }^{ o }>{ H }_{ 2 }O>RC\equiv CH\)
The geometry of \(\overset { . }{ C } H_{ 3 }\) is
- (a)
pyramidal
- (b)
linear
- (c)
tetrahedral
- (d)
planar
Among the following compounds, the compound which does not show chain isomerism is
- (a)
C3H8
- (b)
C4H10
- (c)
C5H12O
- (d)
C5H10O
Consider thiol anion \((RS^{\ominus})\) and alkoxy anion \((RO^{\ominus})\). Which of the following statement is correct?
- (a)
\(RS^{\ominus}\) is less basic and less nucleophilic than \(RO^{\ominus}\)
- (b)
\(RS^{\ominus}\) is less basic but more nucleophilic than \(RO^{\ominus}\)
- (c)
\(RS^{\ominus}\) is more basic and more nucleophilic than \(RO^{\ominus}\)
- (d)
\(RS^{\ominus}\) is more basic but less nucleophilic than \(RO^{\ominus}\)