Which of the following statements is/are correct?Straight-chain alkanes have very low octane numbersThe branching of the chain increases the octane number of a fuelStraight and branched-chain alkanes have octane numbers higher than those of the corresponding cycloalkanesAromatic compounds have high octane numbers

Identify the correct Statements.Alkanes with odd no of carbons have high melting points than alkanes with even No. of carbons.Alkanes with even No, of carbons have higher melting point than next higher and lower alkanes with odd No. of carbon atoms.Grignard reagents react with compounds having acidic hydrogen and give alkanes.The minimum No. of carbons in alkanes required to show optical isomerism is 7.Alkanes and cyclo alkanes can exhibit geometrical isomerismBoiling point of alkanes will increase with increase of carbon atoms

Multiple Choice QuestionAll of the following names correspond to alkanes except ______.Multiple choice question.octane2-methylheptane1-octene2,3-dimethylhexane

Which of the following statement is not correct ?A First three members of alkenes are gases. B First four members of alkanes are gases. C Grease is mixture of lower alkanes is non-polar and hydrophobic in nature. D With increase in number of branched chains the molecule attains the shape of a sphere.

In general, a higher proportion of branched chain hydrocarbons in a gasoline formulationGroup of answer choicesburns cleaner.increases octane rating.decreases octane rating.burns cooler.

isooctane is assigned an octane number of 100, whereas _____ is assigned an octane number of 0.Group of answer choices sulfur dioxide    propane methane    Hydrogen n-heptane