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Organic Chemistry 1
Ethanol is a type of alcohol that we drink.

Organic Chemistry 1

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This is the first of our high school Chemistry quizzes on organic chemistry. Over ninety percent of all chemical compounds are classified as organic compounds. They were given this name because scientists once thought that they could only be made naturally - not unnaturally by scientists in a laboratory. However, in 1828, Friedrich Wohler made the naturally occurring organic compound urea in his laboratory which opened the door to making others from simpler materials.

1.
All organic compounds contain which element?
Sulfur
Carbon
Oxygen
Nitrogen
Organic chemistry is all about compounds of carbon
2.
What type of bonds are formed between carbon and hydrogen atoms in organic molecules?
Covalent
Ionic
Metallic
Hydrogen
Carbon and hydrogen are both non-metals, so form covalent bonds
3.
The alcohols are a family of organic compound that has a wide range of uses, including drinking. Which of the following alcohols is the only one that we drink?
Methanol
Ethanol
Propanol
Butanol
Ethanol also has other uses such as in biofuels
4.
The general formula for alkenes is CnH2n. If an alkene contains 7 carbon atoms, there are how many hydrogen atoms in the compound?
7
10
14
16
7 x 2 = 14
5.
If an alkane contains 24 hydrogen atoms, how many carbon atoms does it have?
12
11
24
22
24 - 2 = 22 / 2 = 11
6.
The general formula for alkanes is CnH2n+2. If an alkane contains 6 carbon atoms, how many hydrogen atoms are present?
6
12
14
18
6 x 2 + 2 = 14
7.
What is the general formula for alcohols?
CnH2nOH
CnHn+1OH
CnH2n+1OH
CnH2n+1O
With this general formula, you can work out the formula of other alcohols
8.
Which of the alcohols below has the molecular formula C4H9OH?
Methanol
Ethanol
Propanol
Butanol
Butane has 4 carbons, so does butanol
9.
If there are 8 carbon atoms in an alcohol molecule, how many hydrogen atoms are there?
18
17
16
15
2 x 8 + 1 + 1 (from OH) = 18
10.
If an alkene has 24 hydrogen atoms, how many carbon atoms does it contain?
10
11
12
24
24 / 2 = 12
Author:  Kate Gardiner

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