1A - Basic concepts review |
1) What do we mean by a saturated hydrocarbon? [2]
Contains only hydrogen and carbon [1] all C - C bonds are single bonds
2) Give the general formula for the alkenes [1] CnH2n
3) Draw the displayed formula of 2 - methyl propan-2-ol [2]
|
Correct molecule drawn [1] drawn displayed [1]
4) Name the following molecule: [1] 3 methyl pentanal
|
5) Calculate the molecular formula of a hydrocarbon that contains 1.2g of C, 0.250g of H and
has an Mr = 58 [3]
Moles C = 0.1 : H = 0.25 [1] Ef = C2H5 [1] Mf = C4H10 [1]
6) Draw the structural formula for [1] CH3CH2CH(CH3)CH2CO2H
|
7) Name the following molecule: (CH3)3CCBrCHCH2CH3 [2]
3-bromo 2,2 dimethyl hex-3-ene
8) Draw and name 1 structural isomer of butan-2-ol [2]
butan-1-ol / 2 methyl propan-1-ol / 2 methyl propan-2-ol
9) Draw the displayed formula of E 1,2 dichloro ethene [2]
|
Correct molecule drawn [1] drawn displayed [1]
10) Define stereoisomerism [1]
Same structural formula, different spatial arrangement of atoms