Alex Lyes
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A selection of questions based from the 2014 past paper.

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Alex Lyes
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A level Chemistry OCR Salters B 2014 Past Paper

Question 1 of 11

1

Fill the blank space to complete the text.

The process used to separate individual groups of hydrocarbons in crude oil is called .

Explanation

Question 2 of 11

1

What is a structural isomer?

Select one or more of the following:

  • Different molecular formula but same structural formula

  • Same molecular formula but different structural formula

  • Different molecular formula and different structural formula

Explanation

Question 3 of 11

1

Select from the dropdown lists to complete the text.

Balance the equation
SO2 + ( 1, 2, 3, 4 )H2O + O2 -> ( 2, 1, 3, 4 )H2SO4

Explanation

Question 4 of 11

1

CO2 is a molecule because there are groups of electrons on both sides of the C atom. They each other so they are as from each other as possible. The bond angle is .

Drag and drop to complete the text.

    linear
    bent
    tetrahedral
    2
    3
    4
    repel
    far apart
    close
    120°
    109.5°
    180°

Explanation

Question 5 of 11

1

of nuclear energy compared to fossil fuels is that no CO2 is produced. is the radoiactive waste.

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    An advantage
    A disadvantage

Explanation

Question 6 of 11

1

Fill the blank spaces to complete the text.

Carbon has bonding and has a structure. Sulfur has bonding and has a structure.

Explanation

Question 7 of 11

1

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Bond breaking is ( endothermic, exothermic ). Bond making is ( endothermic, exothermic ).

Explanation

Question 8 of 11

1

Fill the blank space to complete the text.

At room temp, iodine is a grey .

Explanation

Question 9 of 11

1

Fill the blank space to complete the text.

Propanone is made from the alcohol, .

Explanation

Question 10 of 11

1

In dynamic equilibrium, the rate of the forward reaction is the backward reaction and the concentrations .

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    the same as
    greater than
    less than
    remain constant
    alter

Explanation

Question 11 of 11

1

Fill the blank space to complete the text.

In fission, 2 radicals are formed.

Explanation