Que- 2-propanol and 1-propanol show the isomerism
a. metamerism
b. functional group isomerism
c. geometric isomerism
d. position isomerism
Answer- position isomerism
Que- Which of the following is an amide
a. R-NH2
b. RCONH2
c. R - NH - R
d. C6H5NH2
Answer- RCONH2
Que- In sp3 hybridization the expected geometry of molecules will be
a. square planar
b. trigonal pyramidal
c. tetrahedral
d. linear
Answer- tetrahedral
Que- Only sigma bonds are present in
a. propene
b. butanoic acid
c. butanal
d. ethoxy ethane
Answer- ethoxy ethane
Que- In cyano group the carbon atom shows which kind of hybridization
a. sp2
b. sp
c. sp3
d. none of the above
Answer- sp
Que- The structure of ethyne is
a. angular
b. trigonal
c. linear
d. trigonal planar
Answer- linear
Que- the fractional distillation of petroleum produces gasoline up to
a. 10%
b. 15%
c. 20%
d. 30%
Answer- 20%
Que- The general formula of cycloalkene is
a. CnH2n
b. CnH2n+2
c. CnH2n-1
d. CnH2n-2
Answer- CnH2n-2
Que- Which is not heterocyclic compound
a. Furan
b. Thiophene
c. Aniline
d. Pyridine
Answer- Aniline
Que- C5H12 has the number of isomers
a. one
b. two
c. three
d. four
Answer- three
Que- Alkanes containing a methyl group on main chain at 2nd carbon are called
a. iso-alkane
b. normal-alkane
c. neo-alkane
d. branched-alkane
Answer- iso-alkane
Que- When one hydrogen atom of alkane is removed then it is called
a. alkene
b. alkyl
c. aldehyde
d. saturated hydrocarbon
Answer- alkyl
Que- Alkanes are also known as
a. saturated hydrocarbon
b. unsaturated hydrocarbon
c. paraffins
d. both a & c
Answer- paraffins
Que- Sabatier Senderns reaction involve _________ in presence of Ni
a. Aalkene & H2
b. alkene & O2
c. alkene & N2
d. alkyne & Cl2
Answer- Aalkene & H2
Que- Hydrogenolysis results in the formation of
a. alkane
b. alkene
c. alkyne
d. aldehydes
Answer- alkane
Que- Clemmensens reduction infolves the reduction of
a. ketone
b. aldehyde
c. alkane
d. all of the above
Answer- ketone
Que- Removal of CO2 is called
a. carboxylation
b. decarboxylation
c. esterification
d. hydroxylation
Answer- decarboxylation
Que- Soda lime is a mixture of
a. CaO and KOH
b. CaO and NaOH
c. NaOH and Na2O
d. Na2O and KOH
Answer- CaO and NaOH
Que- Molozonide is unstable and changes into ozonide on
a. reduction
b. oxidation
c. hydrolysis
d. rearrangement
Answer- rearrangement
Que- Dehalogenation of ethyl tetrahalide will give
a. ethene
b. ethyne
c. ethyl halide
d. all of the above are possible
Answer- ethyne
Que- R-Mg-Br is called
a. Grignard reagent
b. Metallic alkyl halide
c. Both a & b
d. Alkyl
Answer- Both a & b
Que- Upto ______ C atoms alkanes are gases
a. 2
b. 3
c. 4
d. 6
Answer- 4
Que- Which of the following is the most reactive
a. ethane
b. ethyne
c. ethene
d. benzene
Answer- ethene
Que- Incomplete oxidation of methane in the limited supply of air forms.
a. CO2 and H2O
b. CH3OH
c. CO + H2 + C
d. CO + H2O + C
Answer- CH3OH
Que- Introduction of nitro group in a molecule is called
a. nitration
b. halogenation
c. sulphonation
d. amination
Answer- nitration
Que- Order of ease of halogenation in alkane is
a. I2>Cl2>Br2>F2
b. F2>Cl2>I2>Br2
c. F2>Cl2>Br2>I2
d. Cl2>F2>Br2>I2
Answer- F2>Cl2>Br2>I2
Que- The gas used in manufacturing of urea fertilizer
a. C2H6
b. C2H4
c. C2H2
d. CH4
Answer- CH4
Que- General formula of alkyne is
a. CnH2n + 2
b. CnH2n - 2
c. CnH2n
d. CnH2n + 2
Answer- CnH2n - 2
Que- Which of the following will be acidic
a. propyne
b. 1-butyne
c. ethyne
d. all of the above
Answer- all of the above
Que- Removal of halogen and hydrogen atom is
a. halogenation
b. dehalogenation
c. dehydrohalogenation
d. hydrohalogenation
Answer- dehydrohalogenation
Que- Alkenes are produced from dehalogenation of
a. dihalo alkane
b. trihalo alkane
c. vicinal dihalo alkane
d. vicinal trihalo alkane
Answer- vicinal dihalo alkane
Que- Reactivity due to pi-electrons is present in
a. alkane
b. alkene
c. alkyne
d. both b & c
Answer- both b & c
Que- Raney nickel is prepared from __________ by treating with caustic soda
a. Ni-Cu alloy
b. Ni-Fe alloy
c. Ni-Al alloy
d. Ni-Mg alloy
Answer- Ni-Al alloy
Que- Which one is Chloroform
a. CH2Cl2
b. CH3Cl
c. CHCl3
d. CCl4
Answer- CHCl3
Que- Vinylacetylene combines with HCI to form
a. polyacetylene
b. benzene
c. chloroprene
d. divinyl acetylene
Answer- chloroprene
Que- Which is used for artificial ripening of fruit?
a. ethane
b. ethene
c. ethyne
d. methane
Answer- ethene
Que- Preparation of vegetable ghee involves
a. halogenation
b. hydroxylation
c. hydrogenation
d. hydration
Answer- hydrogenation
Que- Which is methyl cyanide
a. CH3NH2
b. CH3NO2
c. CH3CN
d. CH2 = CH - CN
Answer- CH3CN
Que- The molecular formula of toluene is
a. C7H7
b. C7H8
c. C8H8
d. C8H7
Answer- C7H8
Que- Phenanthrene is a fused polycyclic compound contains ______ benzene rings
a. Two
b. Three
c. Four
d. Five
Answer- Three
Que- Aniline is a derivative of benzene which contains
a. Imino group
b. Amino group
c. Amide group
d. Nitro group
Answer- Amino group
Que- Nitration of chlorobenzene gives
a. o - chloronitrobenzene
b. p - chloronitrobenzene
c. m - chloronitrobenzene
d. a & b
Answer- a & b
Que- When benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of compound?
a. Bromine
b. Chlorine
c. Fluorine
d. Iodine
Answer- Iodine
Que- Michael Faraday discovered benzene in the gas which was produced by destructive distillation of vegetable oil that is done in
a. The presence of Oxygen
b. The presence of Hydrogen
c. The absence of Oxygen
d. The presence of excessive Oxygen
Answer- The absence of Oxygen
Que- By which method the molecular mass of benzene was determined as 78.108?
a. Specific gravity method
b. Vapour density method
c. X-ray diffraction method
d. Distillation methos
Answer- Vapour density method
Que- How many moles of H2 are added up when benzene is heated with hydrogen in the presence of platinum?
a. Two
b. Three
c. Four
d. Six
Answer- Three
Que- Chlorination of toluene in the presence of sublight produces
a. Benzyl chloride
b. o - chlorotoluene
c. p - chlorotoluene
d. benzoic acid
Answer- Benzyl chloride
Que- The resonance energy of benzene is
a. 150.5 kJ/mol
b. 250.5 kJ/mol
c. 150.5 Cal/mol
d. 250.5 Cal/mol
Answer- 150.5 kJ/mol
Que- Which one of the following methods will not give benzene?
a. Heating sod. Salt of Benzoic acid with soda lime
b. Distilling phenol with Zn dust
c. Chlorobenzene with NaOH at 360Degree Centigrade & 150atm.
d. Hydrolysis of benzene sulphonic acid with super heated steam.
Answer- Chlorobenzene with NaOH at 360Degree Centigrade & 150atm.
Que- Which is fused cyclic aromatic compound
a. diphenyl amine
b. diphenyl methane
c. naphthalene
d. biphenyl
Answer- naphthalene
Que- Acetophenone is a
a. Ether
b. Ketone
c. Aldehyde
d. Ester
Answer- Ketone
Que- Reacting bromine with benzene in the presence of sunlight will result in
a. The rupturing of benzene ring
b. Substitution reaction
c. Addition reaction
d. No-reaction
Answer- Addition reaction
Que- Benzene does not undergo
a. Substitution reaction
b. Addition reaction
c. Polymerization reactions
d. Oxidation reactions
Answer- Polymerization reactions
Que- During sulphonation of benzene H2SO4 generates the electrophile
a. HSO4-
b. SO2
c. SO3
d. H+
Answer- SO3
Que- Nitronium ion is
a. NO3
b. NO
c. NO2-
d. NO2+
Answer- NO2+
Que- Which compound will readily undergo sulphonation?
a. Benzene
b. Nitro benzene
c. Toluene
d. Chlorobenzene
Answer- Toluene
Que- Benzene is heated in air with V2O5 at 450Degree Centigrade it undergoes
a. Substitution reaction
b. Addition reaction
c. Elimination reaction
d. Oxidation reaction
Answer- Oxidation reaction
Que- The preparation of benzene from acetylene can also be said as
a. Oxidation
b. Polymerization
c. Dehydration
d. Condensation
Answer- Polymerization
Que- Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as
a. Dows process
b. Friedel & Craft acylation
c. Friedel & Craft alkylation
d. Clemmenson reduction
Answer- Friedel & Craft alkylation
Que- Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7
a. Toluene
b. Ethyl benzene
c. n-propyl benzene
d. All
Answer- All
Que- Ozonolysis of benzene produces
a. Glycol
b. Glyoxal
c. Vicinal diol
d. Both b & c
Answer- Glyoxal
Que- What is the molecular formula of Benzenetriozonide?
a. C6H6O9
b. C6H5O8
c. C6H5O9
d. C6H6O6
Answer- C6H6O9
Que- The hydrolysis of Benzenetrizonide will yield three moles of
a. Glyoxime
b. Benzaldehyde
c. Glycol
d. Glyoxal
Answer- Glyoxal
Que- Ethyl chloride with nascent hydrogen produces
a. methane
b. ethane
c. propane
d. butane
Answer- ethane
Que- Which one is not a nucleophile?
a. C2H5O-
b. SCN-
c. NH3
d. H3C+
Answer- H3C+
Que- The number of molecules taking part in the rate determining step is called
a. Order of reaction
b. Rate of reaction
c. Mole of a reaction
d. Extent of a reaction
Answer- Order of reaction
Que- What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B]?
a. Zero
b. One
c. Two
d. Three
Answer- Two
Que- What is the order of kinetics in the SN1 mechanism?
a. Zero
b. First
c. Second
d. Third
Answer- First
Que- Which alkyl halide out of the following may follow both SN1 and SN2 mechanism?
a. CH3-X
b. (CH3)3 C-CH2 - X
c. (CH3)2 CH - X
d. (CH3)3 C - X
Answer- (CH3)2 CH - X
Que- When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed?
a. 2 moles of ethane
b. 1 mole of ethane
c. 2 moles of butane
d. 1 mole of butane
Answer- 1 mole of butane
Que- The ether used in Wurtz synthesis is
a. acidic
b. basic
c. aqueous
d. dry
Answer- dry
Que- When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is
a. propane
b. propanoic acid
c. propanal
d. propanol
Answer- propanoic acid
Que- Grignard reagent is reactive due to
a. the presence of halogen atom
b. the presence of magnesium atom
c. the polarity of C-Mg bond
d. all
Answer- the polarity of C-Mg bond
Que- SN2 reaction can be best carried out with
a. primary alkyl halide
b. secondary alkyl halide
c. tertiary alkyl halide
d. all
Answer- primary alkyl halide
Que- Elimination bimolecular reactions involve
a. first order kinetics
b. second order kinetics
c. third order kinetics
d. zero order kinetics
Answer- second order kinetics
Que- For which mechanisms the first step involved is the same?
a. E1 + E2
b. E2 + SN2
c. E1 and SN1
d. SN1 and SN2
Answer- E1 and SN1
Que- The rate of E1 reaction depends upon
a. the concentration of substrate
b. the concentration of nucleophile
c. the concentration of substrate as well as nucleophile
d. base the concentration of substrate as well as nucleophile
Answer- the concentration of substrate
Que- Alkyl halides are considered to be very reactive compounds towards nucleophile because
a. they have an electrophilic carbon
b. they have an electrophilic carbon & a good leaving group
c. they have an electrophilic carbon & a bad leaving group
d. they have a nucleophilic carbon & a good leaving group
Answer- they have an electrophilic carbon & a good leaving group
Que- Which one of the following species is not an electrophile?
a. NH3
b. Br+
c. H+
d. BF3
Answer- NH3
Que- Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent
a. formaldehyde
b. ketone
c. ethylene epoxide
d. both a & c
Answer- both a & c
Que- Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone?
a. primary alcohol
b. secondary alcohol
c. tertiary alcohol
d. dihydric alcohol
Answer- tertiary alcohol
Que- Which one of the following molecules does not form alcohol when reacts with Grignard reagent?
a. formaldehyde
b. acetaldehyde
c. propanone
d. carbondioxide
Answer- carbondioxide
Que- In primary alkyl halides the halogen atom is attached to a carbon which is further attached to how many carbon atoms
a. two
b. three
c. one
d. four
Answer- one
Que- Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield
a. primary alcohol
b. secondary alcohol
c. tertiary alcohol
d. dihydric alcohol
Answer- primary alcohol
Que- The best method of preparation of alkyl halides is a reaction of alcohol with
a. Zn / HCI
b. SOCl2 / Pyridine
c. PCI3
d. PCI5
Answer- SOCl2 / Pyridine
Que- Alkyl halides undergo a type of reaction
a. Nucleophilic substitution
b. Nucleophilic addition
c. Elimination
d. both a & c
Answer- both a & c
Que- 50% inversion of configuration of molecules take place in a
a. E1 - reaction
b. E2 - reaction
c. SN1 - reaction
d. SN2 - reaction
Answer- SN1 - reaction
Que- Which one of the following is termed as benzul alcohol?
a. C6H5OH
b. C6H5CH(OH)2
c. C6H5CH2OH
d. C6H5COOH
Answer- C6H5CH2OH
Que- Which one of the following is also known as lactic acid?
a. 3-Hydroxy propanoic acid
b. 2-Hydroxy propanoic acid
c. 2-hydroxy butanoic acid
d. 3-hydroxy butanoic acid
Answer- 2-Hydroxy propanoic acid
Que- Which one of the following is also known as tartaric acid?
a. 2 3-dihydroxy butance 1 4 -dioic acid
b. 2 3 -dihydroxy butanedioic acid
c. 2 3 -dihydroxy butanioc acid
d. 2 2 -dihydroxy butanoic acid
Answer- 2 3-dihydroxy butance 1 4 -dioic acid
Que- Water gas heated at 450Degree Centigrade and 200 atm pressure in the presence of ZnO+Cr2O3 will produce
a. methanal
b. methanol
c. carbonic acid
d. methane
Answer- methanol
Que- The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called
a. Mother liquor
b. Filterate
c. Extract
d. Molasses
Answer- Molasses
Que- The formula of starch is
a. C12H22O11
b. C6H10O5
c. (C6H10O5)n
d. C6H12O6
Answer- (C6H10O5)n
Que- The process of fermentation of starch involve many enzymes the sequence of enzymes used are
a. Diastase-maltase-zymase
b. Zymase-maltase-diastase
c. Maltase-diastase-zymase
d. Diastase-zymase-maltase
Answer- Diastase-maltase-zymase
Que- The rectified spirit contains
a. 12% alcohol
b. 90% alcohol
c. 95% alcohol
d. 100% alcohol
Answer- 95% alcohol
Que- K2Cr2O7/H2SO4 generate
a. Oxygen
b. Hydrogen
c. Nascent oxygen[O]
d. Nascent hydrogen[H]
Answer- Nascent oxygen[O]
Que- The oxidation of isopropyl alcohol will yield
a. propane
b. Propanol
c. Propanone
d. Propanoic acid
Answer- Propanone
Que- Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate?
a. Primary alcohol
b. Secondary alcohol
c. Tertiary alcohol
d. All of above
Answer- Tertiary alcohol
Que- The distinction test for primary secondary and tertiary alcohol required to react each of them is
a. Cone. HCI and anhydrous SOCl2
b. Cone. HCI and anhydrous CaCl2
c. Cone. HCI and anhydrous PCl2
d. Cone. HCI and anhydrous ZnCl2
Answer- Cone. HCI and anhydrous ZnCl2
Que- Which compound is also known by the name of carbolic acid?
a. C2H2OH
b. H2CO3
c. C6H5OH
d. H3PO3
Answer- C6H5OH