Chemistry/Chemistry MCQ Question - Aliphatic Hydrocarbons Sample Test,Sample questions

Question:
? ? -dichloroethyl sulphide is commonly known as

1.laughing gas

2.bio-gas

3.mustard gas

4.phosgene gas


Question:
Alkanes are also known as

1.saturated hydrocarbon

2.unsaturated hydrocarbon

3.paraffins

4.both a & c


Question:
Alkanes containing a methyl group on main chain at 2nd carbon are called

1.iso-alkane

2.normal-alkane

3.neo-alkane

4.branched-alkane


Question:
Alkenes are produced from dehalogenation of

1.dihalo alkane

2.trihalo alkane

3.vicinal dihalo alkane

4.vicinal trihalo alkane


Question:
Bleaching powder is not used for bleaching

1.Cotton

2.Costly fabrics

3.Linen

4.Paper pulb


Question:
Clemmensens reduction infolves the reduction of

1.ketone

2.aldehyde

3.alkane

4.all of the above


Question:
Dehalogenation of ethyl tetrahalide will give

1.ethene

2.ethyne

3.ethyl halide

4.all of the above are possible


Question:
General formula of alkyne is

1.CnH2n + 2

2.CnH2n - 2

3.CnH2n

4.CnH2n + 2


Question:
Hydrogenolysis results in the formation of

1.alkane

2.alkene

3.alkyne

4.aldehydes


Question:
In unsaturated hydro carbons ?-electrons favour

1.less reactivity

2.addition reactions

3.substitution reactions

4.none


Question:
In which compound of Xenon the oxidation state of Xenon is + 6.

1.XeF4

2.XeOF4

3.XeOF2

4.Na4XeO6


Question:
Indicate the correct statement:

1.Cl2 is the strongest oxidizing agent

2.I2 is a volatile solid

3.Br2 is more reactive than Cl2

4.Cl2 is insoluble in water


Question:
Introduction of nitro group in a molecule is called

1.nitration

2.halogenation

3.sulphonation

4.amination


Question:
K2Cr2O7/H2SO4 generate

1.Oxygen

2.Hydrogen

3.Nascent oxygen[O]

4.Nascent hydrogen[H]


Question:
Molozonide is unstable and changes into ozonide on

1.reduction

2.oxidation

3.hydrolysis

4.rearrangement


Question:
Order of ease of halogenation in alkane is

1.I2>Cl2>Br2>F2

2.F2>Cl2>I2>Br2

3.F2>Cl2>Br2>I2

4.Cl2>F2>Br2>I2


Question:
Photographic plates are coated with a thin film of :

1.AgNO3

2.AgI

3.AgCl

4.AgBr


Question:
Preparation of vegetable ghee involves

1.halogenation

2.hydroxylation

3.hydrogenation

4.hydration


Question:
R-Mg-Br is called

1.Grignard reagent

2.Metallic alkyl halide

3.Both a & b

4.Alkyl


Question:
Raney nickel is prepared from __________ by treating with caustic soda

1.Ni-Cu alloy

2.Ni-Fe alloy

3.Ni-Al alloy

4.Ni-Mg alloy


Question:
Reactivity due to pi-electrons is present in

1.alkane

2.alkene

3.alkyne

4.both b & c


Question:
Removal of CO2 is called

1.carboxylation

2.decarboxylation

3.esterification

4.hydroxylation


Question:
Removal of halogen and hydrogen atom is

1.halogenation

2.dehalogenation

3.dehydrohalogenation

4.hydrohalogenation


Question:
Sabatier Senderns reaction involve _________ in presence of Ni

1.Aalkene & H2

2.alkene & O2

3.alkene & N2

4.alkyne & Cl2


Question:
Soda lime is a mixture of

1.CaO and KOH

2.CaO and NaOH

3.NaOH and Na2O

4.Na2O and KOH


Question:
The anhydride of HCIO4 is:

1.Cl2O

2.Cl2O6

3.ClO2

4.Cl2O7


Question:
The formula of starch is

1.C12H22O11

2.C6H10O5

3.(C6H10O5)n

4.C6H12O6


Question:
The gas used in manufacturing of urea fertilizer

1.C2H6

2.C2H4

3.C2H2

4.CH4


Question:
The oxidation of isopropyl alcohol will yield

1.propane

2.Propanol

3.Propanone

4.Propanoic acid


Question:
The process of fermentation of starch involve many enzymes the sequence of enzymes used are

1.Diastase-maltase-zymase

2.Zymase-maltase-diastase

3.Maltase-diastase-zymase

4.Diastase-zymase-maltase


Question:
The rectified spirit contains

1.12% alcohol

2.90% alcohol

3.95% alcohol

4.100% alcohol


Question:
The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called

1.Mother liquor

2.Filterate

3.Extract

4.Molasses


Question:
Upto ______ C atoms alkanes are gases

1.2

2.3

3.4

4.6


Question:
Vinylacetylene combines with HCI to form

1.polyacetylene

2.benzene

3.chloroprene

4.divinyl acetylene


Question:
Water gas heated at 450?C and 200 atm pressure in the presence of ZnO+Cr2O3 will produce

1.methanal

2.methanol

3.carbonic acid

4.methane


Question:
When one hydrogen atom of alkane is removed then it is called

1.alkene

2.alkyl

3.aldehyde

4.saturated hydrocarbon


Question:
Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate?

1.Primary alcohol

2.Secondary alcohol

3.Tertiary alcohol

4.All of above


Question:
Which is methyl cyanide

1.CH3NH2

2.CH3NO2

3.CH3CN

4.CH2 = CH - CN


Question:
Which is the paramagnetic oxide of chlorine:

1.Cl2O7

2.Cl2O6

3.ClO2

4.ClO2


Question:
Which is used for artificial ripening of fruit?

1.ethane

2.ethene

3.ethyne

4.methane


Question:
Which of the following is not use of compounds of Fluorine

1.SbF3 is used for manufacture of pottery

2.Sodium fluoroacetate is a rat poison

3.Cu F2 is used in ceramic industry

4.None of the above


Question:
Which of the following is the most reactiIncomplete oxidation of methane in the limited supply of air forms.
ve

1.CO2 and H2O

2.CH3OH

3.CO + H2 + C

4.CO + H2O + C


Question:
Which of the following is the most reactive

1.ethane

2.ethyne

3.ethene

4.benzene


Question:
Which of the following is the weakest reducing agent?

1.HF

2.HBr

3.HC?

4.HI


Question:
Which of the following will be acidic

1.propyne

2.1-butyne

3.ethyne

4.all of the above


Question:
Which one is Chloroform

1.CH2Cl2

2.CH3Cl

3.CHCl3

4.CCl4


Question:
Which one of the following halogens is present in Teflon:

1.I2

2.Br2

3.Cl2

4.F2


Question:
Which one of the following is also known as lactic acid?

1.3-Hydroxy propanoic acid

2.2-Hydroxy propanoic acid

3.2-hydroxy butanoic acid

4.3-hydroxy butanoic acid


Question:
Which one of the following is also known as tartaric acid?

1.2 3-dihydroxy butance 1 4 -dioic acid

2.2 3 -dihydroxy butanedioic acid

3.2 3 -dihydroxy butanioc acid

4.2 2 -dihydroxy butanoic acid


Question:
Which one of the following is termed as benzul alcohol?

1.C6H5OH

2.C6H5CH(OH)2

3.C6H5CH2OH

4.C6H5COOH


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