chemistry of hydrocarbon

Question 1

C1-C4

Answer 1

GASES

Question 2

C5–C17

Answer 2

LIQUIDS

Question 3

C18 ONWARS

Answer 3

SOLIDS

Question 4

whats the decreasing order of reactivity for free sub reaction of alkanes

Answer 4

f2>cl2>br2>i2

Question 5

which radical is more reacitve?

Answer 5

3 degree radical

H in 3 deg radical is also more reactive

Question 6

can free radical sub take place in dark?

Answer 6

no even if we increase the moles

Question 7

methoads of preparation of alkane

Answer 7

wurtz reac
sebastier senden reac
reduction of R-X
hydrogenolysis

Question 8

condition for partial hydrogenation of alkyne

Answer 8

pd(conc h2so4)/ quinoline

Ni / liq nh3 (-33C)

Question 9

reactions of ethene

Answer 9

addition: MACHR (markonikov’s rule, addition of sulphuric acid, catalytic hydrogenation, halogenation, reaction with hbr)
oxidative: CHOPA (combustions, hydroxylation, ozonolysis, polymerization, addition of oxygen)

Question 10

order of ease of addition of halogen in alkene

Answer 10

f2> cl2> br2> i2

Question 11

order of reactivity of halogen acids

Answer 11

HI> HBR> HCL

Question 12

WHEN DOES ETHENE POLYMERIZE TO POLYETHYLENE AND PLYTHENE?

Answer 12

AT 400C AND 100 ATM

Question 13

RESONANCE ENERGY OF BENZENE

Answer 13

+150.5 KJ/MOL

Question 14

sequence of hybridization in benzene

Answer 14

sp2 - sp3 - sp2

Question 15

electrophile name always ends in -ium

Answer 15

nitronium (no2+)
chloronium (cl2+)
carbonium ch3+