2-propanol and 1-propanol show the isomerism
1.metamerism
2.functional group isomerism
3.geometric isomerism
4.position isomerism
Posted Date:-2021-09-09 04:22:41
A double bond consists of
1.Two sigma bonds
2.Two Pi bonds
3.One sigma and one Pi bonds
4.One sigma and two Pi bonds
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A single atom or group of atoms which gives characteristic properties to a compound is called
1.radical
2.hydrocarbon
3.functional group
4.ion
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According to vital force theory
1.Oorganic compounds can be synthesized from inorganic compounds
2.organic compounds cannot be synthesized from inorganic compounds
3.organic compounds can be synthesized by animals
4.organic compounds can be synthesized by plants
Posted Date:-2021-09-09 04:22:41
All the elements in group VIA are _______ in nature.
1.hygroscopic
2.metals
3.polymeric
4.all of above
Posted Date:-2021-09-09 04:22:40
Arsenic oxides are removed by passing through
1.Ferric hydroxide
2.Sodium hydroxide
3.Calcium hydroxide
4.Aluminium hydroxide
Posted Date:-2021-09-09 04:22:41
At low temperature and pressure cracking can be done in presence of catalyst
1.Al2O3
2.Fe2O3
3.Al2O3 and SiO2
4.Fe2O3 and SiO2
Posted Date:-2021-09-09 04:22:41
Chemical properties of first member of homologous series with respect to other members are
1.same
2.different
3.depends upon number of C atoms
4.depends upon number of H atoms
Posted Date:-2021-09-09 04:22:41
Coal is produced after a long time decay of
1.animals
2.fossils
3.wood
4.all of the above
Posted Date:-2021-09-09 04:22:41
Compound containing benzene ring in their structure are
1.aliphatic
2.aromatic
3.carboxylic acid
4.carbohydrates
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Compounds having same molecular formula but differ in structural formula are called
1.polymer
2.monomer
3.isomer
4.allotropes
Posted Date:-2021-09-09 04:22:41
Crude oil is blackish coloured liquid produced after the decay of organic matter present between
1.earth layer
2.mountains
3.sedimentary rocks
4.rocks
Posted Date:-2021-09-09 04:22:41
Ether functional group can be represented as
1.?OH
2.R-CO-R
3.R-O-R
4.R-COOH
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FeSO4 forms brown ring with
1.N2O3
2.NO2
3.NO
4.N2O
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First organic compound synthesized in laboratory was
1.tartaric acid
2.ethyl alcohol
3.methanol
4.urea
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Geometric isomerism is usually found in
1.Alkanes
2.Alkenes
3.Alkynes
4.Esters
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Hydro carbons which burn with smoky flame are called
1.Aliphatic
2.Alicyclic
3.Aromatic
4.Aldehyde
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In cyano group the carbon atom shows which kind of hybridization
1.sp2
2.sp
3.sp3
4.none of the above
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In sp3 hybridization the expected geometry of molecules will be
1.square planar
2.trigonal pyramidal
3.tetrahedral
4.linear
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In which compound nitrogen has maximum oxidation state
1.N2O
2.NO2
3.HNO2
4.HNO3
Posted Date:-2021-09-09 04:22:41
Isomerism which is present only in alkene is
1.structural isomerism
2.metamerism
3.cis-trans isomerism
4.both b and c
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Main source of organic compounds is
1.Animal
2.Fossil
3.Coal
4.Plants
Posted Date:-2021-09-09 04:22:41
Methane is used in power generation in chemical industries being a
1.natural gas
2.good caloric value
3.cheaper
4.All
Posted Date:-2021-09-09 04:22:41
Octane number 2 2 4-trimethyl pentane is
1.100
2.90
3.80
4.70
Posted Date:-2021-09-09 04:22:41
Octane number can be improved by
1.Isomerization
2.Adding (C2H5)4 Pb
3.Adding (CH3)4 Pb
4.All
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Only sigma bonds are present in
1.propene
2.butanoic acid
3.butanal
4.ethoxy ethane
Posted Date:-2021-09-09 04:22:41
Organic compounds are soluble in
1.polar solvent
2.non-polar solvent
3.alkalies
4.water
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Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have
1.Low melting points
2.Low vapour pressure
3.High boiling points
4.High electrical conductivity
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Oxygen and sulphur resemble in all except
1.Electronic conviguration of valence shell electrons
2.Show allotropy
3.Polymeric
4.Show same oxidation state
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Oxygen does not react with all except
1.Alkali
2.Acid
3.Water
4.Metals
Posted Date:-2021-09-09 04:22:40
P2O5 is a hygroscopic powder which sublimes at
1.260?C
2.360?C
3.630?C
4.620?C
Posted Date:-2021-09-09 04:22:40
Pentane and 2-methyl butance have the same
1.Boiling point
2.Melting point
3.Percentage composition
4.Structural formula
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Phosphoric acid is a weak acid and its basicity is
1.1
2.3
3.0
4.2
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Propene can exhibit
1.cis-trans isomerism
2.geometric isomerism
3.both a & b
4.none of the above
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Rate of reactions of most organic compounds are
1.very slow
2.very fast
3.slow
4.no regular character present
Posted Date:-2021-09-09 04:22:41
The chemical composition of cinnabar is
1.ZnS
2.PbS
3.HgS
4.FeS
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The element of group VIA which is a non-metal is
1.S
2.Se
3.Te
4.Po
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The first organic compound was synthesized in laboratory by
1.Wohler
2.Kolbe
3.Berzilius
4.Berthelot
Posted Date:-2021-09-09 04:22:41
The gas which cannot be dried by conc. H2SO4
1.SO2
2.H2S
3.CO2
4.C2H4
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The metallic sound produced by engine due to the pre-ignition of fuel is called
1.knocking
2.reforming
3.cracking
4.a and c
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The organic compounds having very high molecular weight are called
1.carboxylic acids
2.ketones
3.aldehydes
4.polymers
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The precess in which larger molecule with higher molecular weight breaks down into smaller moleucles with lower molecular weight
1.polymerization
2.pyrolysis
3.isomerism
4.no such process occurs
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The property of carbon chain formation is called
1.catenation
2.hybridization
3.polymerization
4.solvation
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The structure of ethyne is
1.angular
2.trigonal
3.linear
4.trigonal planar
Posted Date:-2021-09-09 04:22:41
When sulphuric acid is treated with ethanol sulphuric acid behaves like
1.an acid
2.a dehydrating agent
3.an oxidizing agent
4.as sulphonating agent
Posted Date:-2021-09-09 04:22:41
Which allotropic form of phosphorous is the most stable?
1.White
2.black
3.red
4.Violet
Posted Date:-2021-09-09 04:22:40
Which of the elements show passivity when treated with conc. HNO3.
1.Fe
2.A?
3.Cr
4.All of the above
Posted Date:-2021-09-09 04:22:40
Which of the following can be used as anti-knocking agent.
1.PbCl2
2.(C2H5)4 Pb
3.(C2H5)2 Pb
4.all of the above
Posted Date:-2021-09-09 04:22:41
Which of the following is an amide
1.R-NH2
2.RCONH2
3.R - NH - R
4.C6H5NH2
Posted Date:-2021-09-09 04:22:41
Which one of the following compounds shows intense knocking?
1.n-pentane
2.iso-heptane
3.iso-octane
4.n-heptane
Posted Date:-2021-09-09 04:22:41