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Browse Questions in Chemistry
By
Admin Tantri
on
06 Aug 22
What is not true about homologous series ?
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All the members have similar chemical properties
-
They have identical physical properties
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They can be represented by a common general formula
-
Adjacent members differ in molecular mass by 14
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By
Admin Tantri
on
06 Aug 22
Which of the following has zero dipole moment ?
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1-Butene
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Cis-2-Butene
-
Trans-2-Butene
-
2-Methyl-1-propene
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By
Admin Tantri
on
06 Aug 22
The number of π electrons in anthracene is
-
10
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12
-
14
-
8
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By
Admin Tantri
on
06 Aug 22
C—C—C bond angle in benzene is about
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109°. 28'
-
180°
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120°
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100°
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By
Admin Tantri
on
06 Aug 22
Which of the following molecule is planar ?
- Ethane
-
Methane
- Ethyne
- Benzene
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By
Admin Tantri
on
06 Aug 22
The hybridization of carbon atoms in C—C single bond of H2C=CH-CH=CH2
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sp3-sp3
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sp2 - sp3
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sp2 – sp2
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sp3 — sp
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By
Admin Tantri
on
06 Aug 22
C—H bond length is minimum in
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C2H6
-
C2H4
-
C2H2
-
C6H6
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By
Admin Tantri
on
06 Aug 22
An example of conjugated diene is
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1, 4-Pentadiene
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1, 5-Hexadiene
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1, 2-Butadiene
-
1, 3-Pentadiene
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By
Admin Tantri
on
06 Aug 22
Which of the following is the most stable ?
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CH2 = CH2
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CH3CH - CH(CH3)2
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CH3C(CH3) = CH-CH2CH3
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CH3CH2CH = CH2
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By
Admin Tantri
on
06 Aug 22
A compound with molecular formula C2H2 must contain
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All sigma bonds
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One σ bond and two π bonds
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Two σ bond and two π bonds
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Three σ bonds and two π bonds
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By
Admin Tantri
on
06 Aug 22
CnH2n + 2 is the general formula used to represent
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Alkenes
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Alkanes
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Alkynes
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Benzenoids
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By
Admin Tantri
on
06 Aug 22
The bond order of individual C—C bonds in benzene
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One
-
Two
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Between one and two
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One and two alternatively
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By
Admin Tantri
on
06 Aug 22
All the members of a homologous series have same
- Molecular mass
- Molecular formula
- Empirical formula
- General molecular formula
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By
Admin Tantri
on
06 Aug 22
Which of the following compounds has least dipole moment ?
- 1, 2-Dichlorobenzene
- 1, 3-Dichlorobenzene
- 1, 4-Dichlorobenzene
- All have same dipole moment
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By
Admin Tantri
on
06 Aug 22
Marsh gas mainly contains
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C2H4
-
C2H2
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CH4
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C2H5
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By
Admin Tantri
on
06 Aug 22
The tetrahedral structure of carbon was proposed by
- Kekule
- Wohler
-
Vant Hoff and Le-Bel
- Berthlot
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By
Admin Tantri
on
06 Aug 22
Number of sec-H atoms in iso-butane is
- 1
- 9
- 4
-
None
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By
Admin Tantri
on
06 Aug 22
The shortest C—C bond distance is found in
- Diamond
-
Ethane
-
Benzene
-
Acetylene
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By
Admin Tantri
on
06 Aug 22
Select the molecule which has three pi bond
- CH = CH
-
CH2 = CH—CH = CH—CHO
-
CH3CH = CHCOOH
-
CH3CH = CH2
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By
Admin Tantri
on
06 Aug 22
The general formula of alkynes is
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By
Admin Tantri
on
06 Aug 22
Chemically similar compounds differing by a CH2 are called
- Isomers
- Isomorphous
- Homologous
- None of these is correct
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By
Admin Tantri
on
06 Aug 22
Organic compounds are generally
- Soluble in water
- Stable
- Soluble in non-polar solvents
- Insoluble in non-polar solvents
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By
Admin Tantri
on
06 Aug 22
The vital force theory was proposed by
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Wohler
-
Berthlot
-
Berzelius
-
Kolbe
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By
Admin Tantri
on
06 Aug 22
The first organic compound was synthesized in laboratory by
- Wohler
- Kolbe
- Berzelius
- Neil Bartlett
Answer :
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By
Admin Tantri
on
06 Aug 22
Paraffins is the common name used for
-
Alkanes
-
Alkenes
-
Alkynes
-
Arenes
Answer :
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By
Admin Tantri
on
06 Aug 22
C—C bond length is minimum in
-
C2H6
-
C2H2
-
C2H4
-
C6H6