Hydrocarbons

Question 1

How can alkanes be prepared by using carboxylic acids

Answer 1

In presence of Naoh and cao

Question 2

Kolbes electrolysis

Question 3

aromatisation takes place in the presence of what reagents and at what temperature?

Answer 3

cr2o3
Al2o3
MoO3 (any one )

500 degrees celcius

Question 4

isomerism takes place in the presence of what reagent

Answer 4

AlCl3 and HCl

Question 5

give corey house synthesis reaction

Answer 5

Alkyl halide in presence of
first –lithium
2nd —CuX
3rd—RX

gives alkane

Question 6

give franklands reaction

Answer 6

alkyl halide in presence in zinc and ether gives alkane

Question 7

how can RMgX be converted to alkane

Answer 7

by adding ROH ,HOH(water), NH3 ,OR RNH3

Question 8

what does butane in the presence of carbene give

Answer 8

pentane + isopentane

Question 9

what does alkane in presence of Mo3O2 give

Answer 9

Aldehyde

Question 10

what does alkane in presence of manganese acetate give ?

Answer 10

carboxyllic acid

Question 11

what is produced when alkane is oxidised in presence of Cu

Answer 11

alcohol

Question 12

Pyrolysis takes place at what temperature and what are the reagents and products

Answer 12

773K
reagents –Cr2O3 +Al2O3
products —alkenes and their isomers

Question 13

what is lindlars catalyst

Answer 13

Pd -BaSo4