995 + Interview Questions in HYDROCARBONS IN GENERAL AWARENESS Page 14 InterviewSolution

651.	An alekene X is obtained by dehydration of ann alcohol Y. X on ozonolysis gives two molecules of ethanal for every molecule of alkene. X and Y areA. X=3-hexene,Y=3-hexanolB. X=2-butene, Y=2-butanolC. X=1-butene, Y=1-butanolD. X=1-hexane, Y=1-hexanol
Answer» Correct Answer - B Products of ozonolysis: `CH_(3)-overset(H)overset(\|)(C)=O+O=overset(H)overset(\|)(C)-CH_(3) to underset("2-Butene")(CH_(3)CH=CHCH_(3))` 2-butene is obtained by dehydration of 2-butanol. `CH_(3)-CH_(2)-underset(OH)underset(\|)(C)H-CH_(3)overset(H^(+))to CH_(3)-CH=CH-CH_(3)+H_(2)O`

Discussion

652.	Correct order of reactivity towards electrophilic additon reactions is :A. `CH_(2)=CH_(2)gtCH_(3)-CH=CH_(2)gt(CH_(3))_(2)C=CH_(2)`B. `CH_(2)=CH_(2)gtCH_(3)-CH=CH_(2)lt(CH_(3))_(2)C=CH_(2)`C. `CH_(2)=CH_(2)lt(CH_(3))-_(2)C=CH_(2)lt(CH_(3))-CH=CH_(2)`D. `CH_(3)-CH=(CH_(2))ltC=CH_(2)=(CH_(2))-lt(CH_(3))_(2)C=CH_(2)`
Answer» Correct Answer - B As stability of cation increases rate of electrophilic additon reaction increases

Discussion

653.	Acidic hydrogen is present in :a. acetylene b. ethane c. ethylene d. dimethyl acetylene
Answer» Option : a. acetylene

Discussion

654.	Among the following , the compound which has highest boiling point is:A. B. C. D.
Answer» Correct Answer - C Compound contain 6 carbon

Discussion

655.	Which has least carbon bond length-A. EthaneB. EthyneC. EtheneD. Ethanol
Answer» Correct Answer - B If S-Character increases bond length decreases.

Discussion

656.	Which of the following compound has the highest boiling point? a. n-pentane b. iso-butane c. butane d. neopentane
Answer» Option : a. n-pentane

Discussion

657.	When an alkyne `RC-=CH` is treated with cuprous ion in an ammoniacal medium one of the products isA. `RC-=C Cu`B. `CuC-=CH`C. `CuC-=C Cu`D. `RC-=CR`
Answer» Correct Answer - A `RC -= CH overset(Cu^(+)//NH_(4)OH)rarrRC-=C Cu`

Discussion

658.	Alkanes are readily attacked by-A. ElectrophilesB. NucleophilesC. Free RadicalsD. Bases
Answer» Correct Answer - C In alkane non-polarize bond is present so it can usually cleaved by free radical.

Discussion

659.	The compound with the highest boiling point is:A. n-hexaneB. n-pentaneC. 2,2-dimethyl propaneD. 2-methyl butane
Answer» Correct Answer - A B.P. `prop` molecular weight

Discussion

660.	A mixture of `CH_(4),C_(2)H_(4)` and `C_(2)H_(2)` gases are passed through a Wolf bottle containing ammoniacla cuprous chloride. The ga coming out isA. MethaneB. AcetyleneC. Mixture of methane and ethyleneD. Original mixture
Answer» Correct Answer - c `C_(2)H_(2)` reacts with ammoniacla cuprous chloride due to acidic nature of acetylene. So the gas coming out is mixture of methane and ethylene.

Discussion

661.	Isopropyl bromide undergoes wurtz reaction to form-A. HexaneB. 2,3-Dimethyl butaneC. Propane+Ethane+Butane+Ethene+`CH_(4)`D. n-butane
Answer» Correct Answer - B `CHMe_(2)-Br+2Na+Br-CHMe_(2)+Br-CHMe_(2)("dry")/("Ether")Me_(2)CH-CHMe_(2)+2NaBr`

Discussion

662.	Which of the following will have least hindered rotation about carbon-carbon bond?A. EthaneB. EthyleneC. AcetyleneD. Hexachloroethane
Answer» Correct Answer - A single bond can easily be rotated

Discussion

663.	The highest boiling point is expected for:A. isooctaneB. n-octaneC. 2,2,3,3-tetramethylbutaneD. n-butane
Answer» Correct Answer - B `B.P.prop"surface area"prop(1)/("Branching")`

Discussion

664.	Highest boiling point is expected forA. 2,2-dimethyl butaneB. 3-methyl pentaneC. 2-methyl pentaneD.
Answer» Correct Answer - D

Discussion

665.	Conversion of cyclohexene to cyclohexanol can be conveniently achieved by:A. `NaOH + H_(2)O`B. `Br_(2) - H_(2)O`C. hydroboration, oxidationD. hydroboration hydrolysis
Answer» Correct Answer - c Hydroboration -oxidation reaction.

Discussion

666.	Cyclohexene is best prepared from cyclohexanol by which of the followingA. conc. `H_3PO_4`B. conc. HCl/`ZnCl_2`C. conc. HClD. conc. HBr
Answer» Correct Answer - A The acid used must have a non-nucleophilic anion. Since `Cl^-` and `Br^-`ions are good nucleophiles, therefore, HCl and HBr will give their corresponding halides , therefore, `H_3PO_4` is the correct option.

Discussion

667.	Many organic compounds obtained from natural sources such as resins, balsams, oil of wintergreen, etc. have pleasant fragrance or aroma. Such compounds are named as aromatic compounds. i. Name the simplest aromatic compound. ii. Write the names of any two aromatic compounds.
Answer» i. Benzene is the simplest aromatic hydrocarbon. ii. Toluene and naphthalene

667.

Many organic compounds obtained from natural sources such as resins, balsams, oil of wintergreen, etc. have pleasant fragrance or aroma. Such compounds are named as aromatic compounds. i. Name the simplest aromatic compound. ii. Write the names of any two aromatic compounds.

Answer»

i. Benzene is the simplest aromatic hydrocarbon.

ii. Toluene and naphthalene

Discussion

668.	Identify the product in the reaction `PhC -=Cme overset(H_3O^(+), Hg^(2+)) to ` ?A. `PhCH_2CH_2CHO`B. `PhCOCH_2CH_3`C. `PhCH_2COCH_3`D. PhCOCOMe
Answer» Correct Answer - B

Discussion

669.	How many e-s are here in Benzene Ring?
Answer» Benzene Ring is 6 e^-s

Discussion

670.	Which one is more stable structure of benzene among Kekule and Dewar’s structures?
Answer» Kekule’s structure.

Discussion

671.	Give two limitations of Kekule structure.
Answer» 1. Fails to explain unusual stability of benzene 2. Fails to explain preference to substitution reactions than addition reactions.

671.

Give two limitations of Kekule structure.

Answer»

1. Fails to explain unusual stability of benzene

2. Fails to explain preference to substitution reactions than addition reactions.

Discussion

672.	, Product (Q) is:A. B. C. `CH_(3)-overset(O)overset(\|\|)(C)-O Me`D.
Answer» Correct Answer - b `Br-CH_(2)-overset(O)overset(\|\|)C-Cl(P)overset(CH_(3)OH)toBr -CH_(2)-overset(O)overset(\|\|)C-O-CH_(3)`

Discussion

673.	The boiling point of alkanes shows a steady increase with increase in molecular mass. Why?
Answer» This is due to the fact that the intermolecular van der walls forces increase with increase of the molecular size or the surface area of the molecule.

Discussion

674.	A concentrated solution of sodium butyrate is electrolysed in suitable apparatus. The product at the anode isA. ButaneB. PropaneC. HexaneD. Pentane
Answer» Correct Answer - C `2CH_(3)CH_(2)CH_(2)-COO^(-) overset("Anode")` `2CH_(3)CH_(2)CH_(2)COO to 2CO_(2)+2CH_(2)CH_(2)CH_(3) to CH_(3)CH_(2)-CH_(2)CH_(2)CH_(3)`

Discussion

675.	Which of the following is an example of nucleophilic addition reactionA. `CH-=CH+H_(2) overset(Pd//BaSO_(4).S)to CH_(2)=CH_(2)`B. `CH-=CH+H_(2)O overset(Hg^(2+)//H_(+))to CH_(3)CHO`C. `CH-=CH+H_(2)O to CH_(2)-CHBr_(2)`D. `CH-=CH+CH_(3)COOH overset((CH_(3)COO)_(2)Mg)to CH_(3)-CH(OOC CH_(3))_(2)`
Answer» Correct Answer - B,D Addition of water and acetic acid to acetylene are examples of nucleophilic addition reactions. Addition of `H_(2)(Pd//BaSO_(2)-S)` and HBr to acetylene are example of electolphilic addition reactions.

Discussion

676.	All the four C-H bonds in methane are identical. Give reasons.
Answer» The four C-H bonds of methane are identical because all of these are formed by the overlapping of the same type of orbital’s i.e; hybrid orbital’s of carbon and s-orbital of hydrogen.

Discussion

677.	Explain the physical properties of benzene and its homologues.
Answer» i. Benzene and its homologous upto eight carbon atoms are colourless liquids with characteristic smell. ii. Aromatic hydrocarbons are immiscible with water but soluble in organic solvents. iii. They are inflammable and burn with sooty flame. iv. The melting and boiling points of aromatic compounds increases with increase in molecular mass due to increase in van der waals forces.

677.

Explain the physical properties of benzene and its homologues.

Answer»

i. Benzene and its homologous upto eight carbon atoms are colourless liquids with characteristic smell.

ii. Aromatic hydrocarbons are immiscible with water but soluble in organic solvents.

iii. They are inflammable and burn with sooty flame.

iv. The melting and boiling points of aromatic compounds increases with increase in molecular mass due to increase in van der waals forces.

Discussion

678.	Enlist physical properties of benzene.
Answer» Physical properties of benzene: Benzene is a colourless liquid. Its boiling point is 353 K and melting point is 278.5 K. It is insoluble in water. It forms upper layer when mixed with water. It is soluble in alcohol, ether and chloroform. Its vapours are highly toxic which on inhalation lead to unconsciousness.

678.

Enlist physical properties of benzene.

Answer»

Physical properties of benzene:

Benzene is a colourless liquid.
Its boiling point is 353 K and melting point is 278.5 K.
It is insoluble in water. It forms upper layer when mixed with water.
It is soluble in alcohol, ether and chloroform.
Its vapours are highly toxic which on inhalation lead to unconsciousness.

Discussion

679.	Which of the following is most acidic?A. MethaneB. EthaneC. EthyleneD. Acetylene
Answer» Correct Answer - D Acidic strength `prop` stability of conjugate base. `CH-=underset(SP-C)underset(darr)overset(ɵ)(CH)gt CH_(2)=underset(SP^(2)-C)underset(darr)overset(ɵ)(CH_(2))gtoverset(ɵ)(CH_(3))gtCH_(3)-overset(ɵ)(CH_(2))` (stability order)

Discussion

680.	Ethylene reacts with 1% cold alkaline `KMnO_(4)` to formA. Oxalic acidB. Ethylene glycolC. Ethyl alcoholD. HCHO
Answer» Correct Answer - B

Discussion

681.	Which of the following reactions takes place when a mixture of concentrated `HNO_(3)` and `H_(2)SO_(4)` reacts on benzene at `350K` ?A. SulphonationB. NitrationC. HydrohalogenationD. Dehydration
Answer» Correct Answer - b b

Discussion

682.	1-Butyne reacts with cold alkaline `KMnO_(4)` to produceA. `CH_(3)CH_(2)COOH`B. `CH_(3)CH_(2)CH_(2)COOH`C. `CH_(3)CH_(2)COOH+CO_(2)`D. `CH_(3)CH_(2)COOH+HCOOH`
Answer» Correct Answer - C `CH_(3)-CH_(2)-C-=Choverset(KMnO_(4))toCH_(3)-CH_(2)-C-COOH+underset(H_(2)O+CO_(2))underset(darr)(HCOOH)("ustable")`

Discussion

683.	Which of the following reactions can be used to prepare an alkane from an alkyl halide ?A. Wurtz reactionB. Kobe electrolysisC. Hoffmann reactionD. Fitting reaction
Answer» Correct Answer - a a

Discussion

684.	1-Butyne reacts with hot alkaline `KMnO_4` to produceA. `CH_3CH_2CH_2COOH`B. `CH_3CH_2COOH`C. `CH_3CH_2COOH+CO_2`D. `CH_3CH_2COOH + HCOOH`
Answer» Correct Answer - C Terminal alkynes on oxidation give a mixture of `CO_2` and a carboxylic acid with one C-atom less than that of the starting alkyne.

Discussion

685.	For an electrophilic substitution reaction , the presence of a halogen atom in the benzene ring …..A. deactivates the ring by inductive effectB. deactivates the ring by resonanceC. increases the charge density at ortho and para position relative to meta position by resonanceD. directs the incoming electrophile to meta position by increasing the charge density relative to ortho and para position.
Answer» Correct Answer - A::C Statements (a) , (c ) are correct but (b ) and (d) are incorrect .

Discussion

686.	Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence ofA. a vinyl groupB. an isopropyl groupC. an acetylenic triple bondD. two ethylenic double bonds.
Answer» Correct Answer - A Presence of vinyl group is alkene is indicated when it gives formaldehyde on ozonolysis

Discussion

687.	Why is cyclopropane more reactive than propane?
Answer» In cyclopropane, bond angle is 60° which is much less compared to the normal tetrahedral bond angle of 109.5° for sp³ hybridsed carbon. Therefore, the molecule is very much strained and hence reactive.

Discussion

688.	The compound which produces propane on heating with HI in presence of phosphorys isA. `CH_(3)CH_(2)CHI`B. `CH_(3)CH_(2)CHO`C. `CH_(3)CH_(2)CH_(2)OH`D. All of these
Answer» Correct Answer - D `CH_(3)CH_(2)CH_(2)I+HI overset("Red P")to CH_(3)CH_(2)CH_(3)+I_(2)` `CH_(3)CH_(2)CH_(3)OH+2HI overset("red P")to CH_(3)CH_(2)CH_(3)+I_(2)+H_(2)O` `CH_(3)CH_(2)CHO+4HI underset(423K)overset("red P")to CH_(3)CH_(2)CH_(3)+2I_(2)+H_(2)O`

Discussion

689.	Which of the following on treatment with Zn/Cu couple produces propane?A. PropanalB. Isopropyl bromineC. Isopropyl amineD. Isopropyl alcohol
Answer» Correct Answer - B `CH_(3)overset(Br)overset(\|)(CHCH_(3)) underset(C_(2)H_(5)OH -HBr)overset(Zn-Cu)toH_(3)C-CH_(2)-CH_(3)`

Discussion

690.	propene `+HOCltoAto` Final product. In the above reaction A will be:A. `CH_(3)-underset(OH)underset(\|)overset(H)overset(\|)(C)-overline(C)-H`B. `CH_(3)-overset(H)overset(\|)(underline(C))-underset(Cl)underset(\|)overset(H)overset(\|)(C)-H`C. `CH_(3)-overset(H)overset(\|)(underline(C))-underset(OH)underset(\|)overset(H)overset(\|)(C)-H`D. `CH_(3)-underset(OH)underset(\|)overset(H)overset(\|)(C)-overlineunderset(H)underset(\|)(C)-H`
Answer» Correct Answer - D

Discussion

691.	Propene on reaction with methylene iodide in presence of Zn-Cu couple gives:A. CyclopropaneB. CyclopropaneC. Methyl CyclopropaneD. Cyclobutene
Answer» Correct Answer - C

Discussion

692.	When water vapours are passsedover aluminium carbide , we get `:`A. (a) acetaldehydeB. (b) ethyleneC. (c) methaneD. (d) methyl alcohol
Answer» Correct Answer - c c

Discussion

693.	Give the IUPAC name of an isomer of hexane which has only two different sets of structurally equivalent hydrogen atoms.
Answer» `underset"2,3-Dimethylbutane"(CH_3-undersetunderset(CH_3)\|CH-undersetunderset(CH_3)\|CH-CH_3)` It has 12 equivalent `1^@` hydrogens and 2 equivalent `3^@` hydrogens.

Discussion

694.	Which among the following is expected to have the hightest boiling point?A. 2-MethylpropaneB. n-HexaneC. 2-MethylpentaneD. 2,2-Dimethylbutane
Answer» Correct Answer - B

Discussion

695.	How many σ C-C, σ C-H, & π bonds are present in benzene?
Answer» 3C-Cσ , 6C-Hσ & 3π bonds.

Discussion

696.	Assertion: Among the isomeric alkanes, the branched chain isomers have lower boiling point than the straight chain isomers.Reason: With branching of chain surface area decreases and the vander waal forces of attraction which depend upon surface area also tend to decreases.(a) A is correct, R is correct and R is a correct explanation of A.(b) A is not correct,R is correct and R is not a explanation for A.(c) Both A and R are wrong.(d) R is correct reason but A is wrong.
Answer» (a) A is correct, R is correct and R is a correct explanation of A.

Discussion

697.	Give reason for the following:Straight chain alkanes possess higher boiling points than the corresponding branched chain isomers.
Answer» Due to lower surface area, therefore strong vander waal’s forces of attraction.

Discussion

698.	A is:A. B. C. D.
Answer» Correct Answer - C Addition of `H_(2)O` according to Markovnikov Rule.

Discussion

699.

Match the followingList - IList -II(No. of carbon atoms)(Major uses)A. 1-4(1) Paraffin waxB. 5-7(2) Gasoline onlyC. 6-12(3) SolventsD. 50+(4) Cooking fuelCode :ABCD(a)1234(b)2341(c)4321(d)3214

Answer»

	A	B	C	D
(c)	4	3	2	1

Discussion

700.	Statement – I : Boiling point of methane is lower than that of butane. Statement – II : The boiling point of continuous chain alkanes increases with increase in length of carbon chain. (a) Statement – I and II are correct and statement – II is correct explanation of statement – I (b) Statement – I and II are correct but statement – II is not correct explanation of statement -I (c) Statement – I is correct but statement – II is wrong. (d) Statement – I is wrong but statement – I is correct.
Answer» (a) Statement – I and II are correct and statement – II is correct explanation of statement -I

Discussion

Explore topic-wise InterviewSolutions in .

An alekene X is obtained by dehydration of ann alcohol Y. X on ozonolysis gives two molecules of ethanal for every molecule of alkene. X and Y areA. X=3-hexene,Y=3-hexanolB. X=2-butene, Y=2-butanolC. X=1-butene, Y=1-butanolD. X=1-hexane, Y=1-hexanol

Acidic hydrogen is present in :a. acetylene b. ethane c. ethylene d. dimethyl acetylene

Among the following , the compound which has highest boiling point is:A. B. C. D.

Which has least carbon bond length-A. EthaneB. EthyneC. EtheneD. Ethanol

Which of the following compound has the highest boiling point? a. n-pentane b. iso-butane c. butane d. neopentane

When an alkyne `RC-=CH` is treated with cuprous ion in an ammoniacal medium one of the products isA. `RC-=C Cu`B. `CuC-=CH`C. `CuC-=C Cu`D. `RC-=CR`

Alkanes are readily attacked by-A. ElectrophilesB. NucleophilesC. Free RadicalsD. Bases

The compound with the highest boiling point is:A. n-hexaneB. n-pentaneC. 2,2-dimethyl propaneD. 2-methyl butane

A mixture of `CH_(4),C_(2)H_(4)` and `C_(2)H_(2)` gases are passed through a Wolf bottle containing ammoniacla cuprous chloride. The ga coming out isA. MethaneB. AcetyleneC. Mixture of methane and ethyleneD. Original mixture

Isopropyl bromide undergoes wurtz reaction to form-A. HexaneB. 2,3-Dimethyl butaneC. Propane+Ethane+Butane+Ethene+`CH_(4)`D. n-butane

Which of the following will have least hindered rotation about carbon-carbon bond?A. EthaneB. EthyleneC. AcetyleneD. Hexachloroethane

The highest boiling point is expected for:A. isooctaneB. n-octaneC. 2,2,3,3-tetramethylbutaneD. n-butane

Highest boiling point is expected forA. 2,2-dimethyl butaneB. 3-methyl pentaneC. 2-methyl pentaneD.

Conversion of cyclohexene to cyclohexanol can be conveniently achieved by:A. `NaOH + H_(2)O`B. `Br_(2) - H_(2)O`C. hydroboration, oxidationD. hydroboration hydrolysis

Cyclohexene is best prepared from cyclohexanol by which of the followingA. conc. `H_3PO_4`B. conc. HCl/`ZnCl_2`C. conc. HClD. conc. HBr

Many organic compounds obtained from natural sources such as resins, balsams, oil of wintergreen, etc. have pleasant fragrance or aroma. Such compounds are named as aromatic compounds. i. Name the simplest aromatic compound. ii. Write the names of any two aromatic compounds.

Identify the product in the reaction `PhC -=Cme overset(H_3O^(+), Hg^(2+)) to ` ?A. `PhCH_2CH_2CHO`B. `PhCOCH_2CH_3`C. `PhCH_2COCH_3`D. PhCOCOMe

How many e-s are here in Benzene Ring?

Which one is more stable structure of benzene among Kekule and Dewar’s structures?

Give two limitations of Kekule structure.

, Product (Q) is:A. B. C. `CH_(3)-overset(O)overset(||)(C)-O Me`D.

The boiling point of alkanes shows a steady increase with increase in molecular mass. Why?

A concentrated solution of sodium butyrate is electrolysed in suitable apparatus. The product at the anode isA. ButaneB. PropaneC. HexaneD. Pentane

Which of the following is an example of nucleophilic addition reactionA. `CH-=CH+H_(2) overset(Pd//BaSO_(4).S)to CH_(2)=CH_(2)`B. `CH-=CH+H_(2)O overset(Hg^(2+)//H_(+))to CH_(3)CHO`C. `CH-=CH+H_(2)O to CH_(2)-CHBr_(2)`D. `CH-=CH+CH_(3)COOH overset((CH_(3)COO)_(2)Mg)to CH_(3)-CH(OOC CH_(3))_(2)`

All the four C-H bonds in methane are identical. Give reasons.

Explain the physical properties of benzene and its homologues.

Enlist physical properties of benzene.

Which of the following is most acidic?A. MethaneB. EthaneC. EthyleneD. Acetylene

Ethylene reacts with 1% cold alkaline `KMnO_(4)` to formA. Oxalic acidB. Ethylene glycolC. Ethyl alcoholD. HCHO

Which of the following reactions takes place when a mixture of concentrated `HNO_(3)` and `H_(2)SO_(4)` reacts on benzene at `350K` ?A. SulphonationB. NitrationC. HydrohalogenationD. Dehydration

1-Butyne reacts with cold alkaline `KMnO_(4)` to produceA. `CH_(3)CH_(2)COOH`B. `CH_(3)CH_(2)CH_(2)COOH`C. `CH_(3)CH_(2)COOH+CO_(2)`D. `CH_(3)CH_(2)COOH+HCOOH`

Which of the following reactions can be used to prepare an alkane from an alkyl halide ?A. Wurtz reactionB. Kobe electrolysisC. Hoffmann reactionD. Fitting reaction

1-Butyne reacts with hot alkaline `KMnO_4` to produceA. `CH_3CH_2CH_2COOH`B. `CH_3CH_2COOH`C. `CH_3CH_2COOH+CO_2`D. `CH_3CH_2COOH + HCOOH`

Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence ofA. a vinyl groupB. an isopropyl groupC. an acetylenic triple bondD. two ethylenic double bonds.

Why is cyclopropane more reactive than propane?

The compound which produces propane on heating with HI in presence of phosphorys isA. `CH_(3)CH_(2)CHI`B. `CH_(3)CH_(2)CHO`C. `CH_(3)CH_(2)CH_(2)OH`D. All of these

Which of the following on treatment with Zn/Cu couple produces propane?A. PropanalB. Isopropyl bromineC. Isopropyl amineD. Isopropyl alcohol

Propene on reaction with methylene iodide in presence of Zn-Cu couple gives:A. CyclopropaneB. CyclopropaneC. Methyl CyclopropaneD. Cyclobutene

When water vapours are passsedover aluminium carbide , we get `:`A. (a) acetaldehydeB. (b) ethyleneC. (c) methaneD. (d) methyl alcohol

Give the IUPAC name of an isomer of hexane which has only two different sets of structurally equivalent hydrogen atoms.

Which among the following is expected to have the hightest boiling point?A. 2-MethylpropaneB. n-HexaneC. 2-MethylpentaneD. 2,2-Dimethylbutane

How many σ C-C, σ C-H, &amp; π bonds are present in benzene?

Give reason for the following:Straight chain alkanes possess higher boiling points than the corresponding branched chain isomers.

A is:A. B. C. D.

Match the followingList - IList -II(No. of carbon atoms)(Major uses)A. 1-4(1) Paraffin waxB. 5-7(2) Gasoline onlyC. 6-12(3) SolventsD. 50+(4) Cooking fuelCode :ABCD(a)1234(b)2341(c)4321(d)3214

How many σ C-C, σ C-H, & π bonds are present in benzene?