Hydrogenation of alkene needs catalyst. What is the name of this catalyst?
Nickel
Write the word equation for addition of hydrogen to ethene.
ethene + hydrogen --> ethane
alcohol (ethanol) can be made by (1).......... (2)...........
by reacting ethene with steam at 300C, 60 atm, catalyst phosphoric acid and by fermenting glucose
The boiling points of hydrocarbons ...... with increasing numbers of carbon atoms.
increase
which one have higher boiling point? propanol or methanol?
propanol
what is the name of this compound?
ethanol
C10H22 is ........
decane (alkane)
butane is saturated. what does it means?
single bond/ all carbons have fully bonded with hydrogen atoms
What is the product of the Br2 addition to ethene?
1,2-dibromoethane
In sufficient oxygen supply, butane burns perfectly. What are the products of the perfect combustions?
carbon dioxide and water
Write the equation when ethene reacts with steam (300 C, 60 atm) over a phosphoric acid catalyst.
C2H4 (g) + H2O (g) --> C2H5OH (g)
What is the test for distinguish alkene with alkane? what is the positive result?
bromine test; brown turn colorless
What is the product of hydration of ethene?
ethanol
What is the general formula of the alkenes?
CnH2n
How many valence electrons does the carbon atom have?
4
what is the product when ethene reacts with hydrogen?
ethane
How many carbon atoms are in propane?
3
The structural formula shown is .......
pentene
C4H10 is saturated or unsaturated?
saturated
What is the suffix for single bonded hydrocarbons?
-ane
The simplest organic compound is ......
Hydrocarbons
If an alkane has 15 carbon atoms, how many hydrogen atoms will it have?
32
What is the test to distinguish alkane and alkene? what is the positive result for alkene?
bromine test; the brown color from bromine turns colorless