FURTHER ORGANIC /2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| 1 way to prepare chloroalkane Add phosphurus pentachloride to the ALCOHOL. POCl3 + HCl+ halogenalkane |
🗑
|
||||
| 2nd method to prepare chloroalkanes. Way less efficiently coz some DEHYDRATION of alcohol to propene occurs. Add conc sulfuric acid to mixture of propan-ol- and KCl. H2S04 protonates alcohol & HCl from KCl. |
🗑
|
||||
| 1 way of preparing bromoalkanes? 50% of aulphuric Acid. slowly added with cooling to the alcohol. MIXTURE added to solid KBr & HEATED. |
🗑
|
||||
| Bromoalkane BP(59degrees) more volatile than alcohol BP 82. So DISTILLS off CONDENSED ,COLLECTED. |
🗑
|
||||
| 1 way to prepare iodoalkanes? can't use 50% of sulphuric acid - will oxidise HI. Alcohol warmed with mixture DAMP RED PHOSPORUS and IODINE. IODINE react with PHOSPHORUS - FORM PHOSPHURUS TRIIODIDE. = REACTS WITH ALCOHOL to form IODOALKANE. |
🗑
|
||||
| Concentrated sulphurix acid would? oxidise HALOGENOALKANE. |
🗑
|
||||
| What is substitution? reaction when atom or group replaced by other atom of group. |
🗑
|
||||
| Examples of nucleophiles for nucleophillic substitution? -OH , -CN , -NH2 |
🗑
|
||||
| in nucleophilic substitution? bond made to CARBON using lone pair of electrons and halide Ion RELEASED. |
🗑
|
||||
| what is a necleophile? A species with lone pair of elctrons that is used to form covalent bond with pos atom in another molecule. |
🗑
|
||||
| Reaction with aqueous alkali? reagent :sodium or K hydroxide. Conditions: heat under reflux in aqueow solution. Product : propan-1-ol reaction type:-nucleophilic substitution(hydrolysis) |
🗑
|
||||
| How is nucleophilic substitution sometimes carried out with OH ? why? with halogenalkane dissolved in alcohol. alkali dissolved in water . organic compound not water soluable - little contact between it and OH ions. |
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
ufuoma
Popular Chemistry sets