C7 Quiz - Organic Chemistry

Question 1 of 24

1

What is 'Organic Chemistry'?

Select one of the following:

The study of carbon-based molecules
The study of naturally-occurring molecules
The study of synthesised molecules

Explanation

Question 2 of 24

1

What two elements make up a hydrocarbon?

Select one or more of the following:

Carbon
Oxygen
Nitrogen
Hydrogen

Explanation

Question 3 of 24

1

The general formula for alkanes is CnH2n

Select one of the following:

True
False

Explanation

Question 4 of 24

1

Looking at the chemical formulae of these compounds, which is an alkane?

Select one of the following:

C3H8
C2H4
C5H10

Explanation

Question 5 of 24

1

Alkanes are ❌ hydrocarbons. This means that their ❌ atoms are joined to each other by ❌ bonds. This makes them relatively ❌, apart from their reaction with ❌ in the air - which we call burning or ❌.

Drag and drop to complete the text.

saturated

single

unreactive

carbon

oxygen

combustion

Explanation

Question 6 of 24

1

Which of the following is not true for alkanes?

Select one of the following:

The longer the molecule the higher the boiling point.
The shorter the chain length the less viscous the alkane
The longer the chain the more likely to be liquids or gases
They are immiscible

Explanation

Question 7 of 24

1

Which alkane is represented by this structural formula?

Select one of the following:

methane
butane
heptane

Explanation

Question 8 of 24

1

Fill the blank spaces to complete the text.

Balance the following equation:
C2H6 + O2 -> CO2 + H2O

Explanation

Question 9 of 24

1

Alkenes are unsaturated molecules.

Select one of the following:

True
False

Explanation

Question 10 of 24

1

Alkenes contain a carbon-❌ double bond. This bond is why the alkenes are ❌ reactive than the alkanes. The number of ❌ atoms in an alkene is ❌ the number of carbon atoms, so they have the general formula Equation C❌H❌.

Drag and drop to complete the text.

carbon

hydrogen

more

double

2n

n

Explanation

Question 11 of 24

1

The presence of the C=C double bond allows alkenes to react in ways that alkanes cannot. This allows us to tell alkenes apart from alkanes using a simple chemical test. What is the test for an alkene?

Select one of the following:

They turn universal indicator purple
They turn bromine water colourless
They turn limewater cloudy

Explanation

Question 12 of 24

1

Alcohols all contain the ❌ functional group –❌, which is responsible for the ❌ of alcohols.
The names of alcohols end ‘-❌’, eg ethanol.
The first three alcohols in the series are methanol, ethanol and ❌. They are highly flammable, making them useful as fuels. They are also used as ❌ in marker pens, medicines, and cosmetics (such as deodorants and perfumes). Ethanol is mixed with ❌ for use as a fuel.

Drag and drop to complete the text.

hydroxyl

properties

anol

OH

propanol

solvents

petrol

Explanation

Question 13 of 24

1

Alcohols have similar intermolecular bonding to water.

Select one of the following:

True
False

Explanation

Question 14 of 24

1

Which of the following are uses of methanol?

Select one or more of the following:

fuel
solvent
chemical feedstock
manufacture of cosmetics
to make bread

Explanation

Question 15 of 24

1

Ethanol is used as a fuel, and as a solvent in marker pens, for example.

Select one of the following:

True
False

Explanation

Question 16 of 24

1

What three methods can be used to produce ethanol?

Select one or more of the following:

Fermentation
Biotechnology
Chemical Synthesis
Filtration
Combustion
Fractional Distillation

Explanation

Question 17 of 24

1

The following statements are positive components of which method of producing ethanol?
- High yields of ethanol (95%)
- Theoretical atom economy of 100%
- Efficient process

Select one of the following:

'Synthetic' ethanol
Yeast fermentation
Bacterial fermentation

Explanation

Question 18 of 24

1

The feedstock for 'synthetic' ethanol includes....

Select one of the following:

ethene and water
purpose grown crops
biomass

Explanation

Question 19 of 24

1

What type of bacterium is genetically engineered and used in fermentation to produce ethanol?

Select one of the following:

Penicillium
E.coli
Salmonella

Explanation

Question 20 of 24

1

The concentration of ethanol produced by the fermentation of micro-organisms must be kept low as otherwise the alcohol would poison the enzymes which are used to catalyse the reaction.

Select one of the following:

True
False

Explanation

Question 21 of 24

1

Click on each orange point and select the correct answer.

Complete the table by putting a cross (x) in the correct boxes to show what happens in each reaction.

{"36.3731_27.9762":[{"id":5300812,"answer":"x","x":36.3731,"y":27.9762},{"id":5300813,"answer":"-","x":36.3731,"y":27.9762}],"36.3731_39.881":[{"id":5300814,"answer":"x","x":36.3731,"y":39.881},{"id":5300815,"answer":"-","x":36.3731,"y":39.881}],"36.3731_50.0":[{"id":5300820,"answer":"x","x":36.3731,"y":50.0},{"id":5300821,"answer":"-","x":36.3731,"y":50.0}],"61.8188_27.381":[{"id":5300810,"answer":"x","x":61.8188,"y":27.381},{"id":5300811,"answer":"-","x":61.8188,"y":27.381}],"36.3731_60.7143":[{"id":5300826,"answer":"x","x":36.3731,"y":60.7143},{"id":5300827,"answer":"-","x":36.3731,"y":60.7143}],"61.9809_39.2857":[{"id":5300816,"answer":"x","x":61.9809,"y":39.2857},{"id":5300817,"answer":"-","x":61.9809,"y":39.2857}],"61.9809_51.1905":[{"id":5300822,"answer":"x","x":61.9809,"y":51.1905},{"id":5300823,"answer":"-","x":61.9809,"y":51.1905}],"36.3731_72.0238":[{"id":5300832,"answer":"x","x":36.3731,"y":72.0238},{"id":5300833,"answer":"-","x":36.3731,"y":72.0238}],"61.9809_61.9048":[{"id":5300828,"answer":"x","x":61.9809,"y":61.9048},{"id":5300829,"answer":"-","x":61.9809,"y":61.9048}],"87.9128_27.9762":[{"id":5300808,"answer":"x","x":87.9128,"y":27.9762},{"id":5300809,"answer":"-","x":87.9128,"y":27.9762}],"36.5351_87.5":[{"id":5300838,"answer":"x","x":36.5351,"y":87.5},{"id":5300839,"answer":"-","x":36.5351,"y":87.5}],"61.9809_72.0238":[{"id":5300834,"answer":"x","x":61.9809,"y":72.0238},{"id":5300835,"answer":"-","x":61.9809,"y":72.0238}],"87.9128_38.6905":[{"id":5300818,"answer":"x","x":87.9128,"y":38.6905},{"id":5300819,"answer":"-","x":87.9128,"y":38.6905}],"88.0749_51.1905":[{"id":5300824,"answer":"x","x":88.0749,"y":51.1905},{"id":5300825,"answer":"-","x":88.0749,"y":51.1905}],"88.2369_61.3095":[{"id":5300830,"answer":"x","x":88.2369,"y":61.3095},{"id":5300831,"answer":"-","x":88.2369,"y":61.3095}],"62.1429_88.0952":[{"id":5300840,"answer":"x","x":62.1429,"y":88.0952},{"id":5300841,"answer":"-","x":62.1429,"y":88.0952}],"88.2369_72.619":[{"id":5300836,"answer":"x","x":88.2369,"y":72.619},{"id":5300837,"answer":"-","x":88.2369,"y":72.619}],"88.2369_87.5":[{"id":5300842,"answer":"x","x":88.2369,"y":87.5},{"id":5300843,"answer":"-","x":88.2369,"y":87.5}]}

Explanation

Question 22 of 24

1

A carboxylic acid is characterised by which functional group?

Select one of the following:

-COOH
-OH
-OOH
C=C

Explanation

Question 23 of 24

1

Carboxylic (organic) acids are weak acids which are less likely to ionise, or disassociate, in solution.

Select one of the following:

True
False

Explanation

Question 24 of 24

1

What type of organic chemicals do you need to mix together to make an ester?

Select one or more of the following:

alcohol
carboxylic acid
acid catalyst
enzyme catalyst
alkane
alkene

	Created by Leah Firmstone almost 11 years ago

GCSE Chemistry Quiz on C7 Quiz - Organic Chemistry, created by Leah Firmstone on 22/11/2015.

C7 Quiz - Organic Chemistry

C7 Quiz - Organic Chemistry

Question 1 of 24

What is 'Organic Chemistry'?

Select one of the following:

Explanation

Question 2 of 24

What two elements make up a hydrocarbon?

Select one or more of the following:

Explanation

Question 3 of 24

The general formula for alkanes is CnH2n

Select one of the following:

Explanation

Question 4 of 24

Looking at the chemical formulae of these compounds, which is an alkane?

Select one of the following:

Explanation

Question 5 of 24

Alkanes are ❌ hydrocarbons. This means that their ❌ atoms are joined to each other by ❌ bonds. This makes them relatively ❌, apart from their reaction with ❌ in the air - which we call burning or ❌.

Drag and drop to complete the text.

Explanation

Question 6 of 24

Which of the following is not true for alkanes?

Select one of the following:

Explanation

Question 7 of 24

Which alkane is represented by this structural formula?

Select one of the following:

Explanation

Question 8 of 24

Fill the blank spaces to complete the text.

Balance the following equation: C2H6 + O2 -> CO2 + H2O

Explanation

Question 9 of 24

Alkenes are unsaturated molecules.

Select one of the following:

Explanation

Question 10 of 24

Alkenes contain a carbon-❌ double bond. This bond is why the alkenes are ❌ reactive than the alkanes. The number of ❌ atoms in an alkene is ❌ the number of carbon atoms, so they have the general formula Equation C❌H❌.

Drag and drop to complete the text.

Explanation

Question 11 of 24

The presence of the C=C double bond allows alkenes to react in ways that alkanes cannot. This allows us to tell alkenes apart from alkanes using a simple chemical test. What is the test for an alkene?

Select one of the following:

Explanation

Question 12 of 24

Drag and drop to complete the text.

Explanation

Question 13 of 24

Alcohols have similar intermolecular bonding to water.

Select one of the following:

Explanation

Question 14 of 24

Which of the following are uses of methanol?

Select one or more of the following:

Explanation

Question 15 of 24

Ethanol is used as a fuel, and as a solvent in marker pens, for example.

Select one of the following:

Explanation

Question 16 of 24

What three methods can be used to produce ethanol?

Select one or more of the following:

Explanation

Question 17 of 24

The following statements are positive components of which method of producing ethanol? - High yields of ethanol (95%) - Theoretical atom economy of 100% - Efficient process

Select one of the following:

Explanation

Question 18 of 24

The feedstock for 'synthetic' ethanol includes....

Select one of the following:

Explanation

Question 19 of 24

What type of bacterium is genetically engineered and used in fermentation to produce ethanol?

Select one of the following:

Explanation

Question 20 of 24

The concentration of ethanol produced by the fermentation of micro-organisms must be kept low as otherwise the alcohol would poison the enzymes which are used to catalyse the reaction.

Balance the following equation:
C2H6 + O2 -> CO2 + H2O

The following statements are positive components of which method of producing ethanol?
- High yields of ethanol (95%)
- Theoretical atom economy of 100%
- Efficient process