OCR B A Level Chemistry Elements of Life

Question 1 of 30

1

Fill the blank spaces to complete the text.

Isotopes of an element have the atomic number but mass numbers

Explanation

Question 2 of 30

1

Fill the blank space to complete the text.

The relative mass is the mass of an element compared to an atom of C-12.

Explanation

Question 3 of 30

1

A mass spectrometer measures:

Select one of the following:

Moles
Relative masses
Shapes of molecules

Explanation

Question 4 of 30

1

Work out the number of moles in 5.10g of Aluminium oxide.

Select one or more of the following:

0.0500 moles
5 moles
0.5 moles

Explanation

Question 5 of 30

1

Percentage yeild =

Select one of the following:

theoretical yeild/actual yield x 100
actual yield/theoritical yield x 100
theoretical yield/actual yeild / 100

Explanation

Question 6 of 30

1

Compounds that have water molecules incorporated into them are called water of crystalisation.

Select one of the following:

True
False

Explanation

Question 7 of 30

1

Fill the blank spaces to complete the text.

Methyl orange indicators turn from to when you add acid to an alkali.

Explanation

Question 8 of 30

1

Fill the blank spaces to complete the text.

Phenolphthalein turns from to when you add acid to an alkali.

Explanation

Question 9 of 30

1

Shells further away from the nucleus have a lower energy level than the ones closer to it.

Select one of the following:

True
False

Explanation

Question 10 of 30

1

Select from the dropdown list to complete the text.

Orbitals can contain up to ( 2, 1, 4, 3 ) electrons.

Explanation

Question 11 of 30

1

Click on the orange point and select the correct answer.

Which type of orbital is this?

Explanation

Question 12 of 30

1

Click on the orange point and select the correct answer.

What type of orbital is this?

Explanation

Question 13 of 30

1

Electrons fill up the lowest energy sub-shells first.

Select one of the following:

True
False

Explanation

Question 14 of 30

1

How many electrons does a full p sub-shell contain

Select one or more of the following:

2
6
3
10

Explanation

Question 15 of 30

1

Ionic compounds ❌ electricity when they are ❌ or dissolved because the ions are ❌.

Drag and drop to complete the text.

conduct

molten

free to move

can't conduct

liquid

solid

stationary

stuck to each other

Explanation

Question 16 of 30

1

Fill the blank space to complete the text.

Ionic compounds are often in water.

Explanation

Question 17 of 30

1

Select from the dropdown list to complete the text.

In a covalent bond, the positive nuclei are attracted ( electrostatically, ionically, intramolecularly ) to the shared electrons.

Explanation

Question 18 of 30

1

Dative covalent bonds are when both electrons come from the same atom.

Select one of the following:

True
False

Explanation

Question 19 of 30

1

Giant covalent structures can conduct electricity.

Select one of the following:

True
False

Explanation

Question 20 of 30

1

❌ is an example of a giant covalent structure.

Drag and drop to complete the text.

Silicon dioxide

Sodium chloride

Magnesium

Explanation

Question 21 of 30

1

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Metalic structures contain ( delocalised, no, localised ) electrons.

Explanation

Question 22 of 30

1

What is the bond angle on a molecule containing 2 groups of paired electrons around a central atom?

Select one of the following:

180
109.5
107
120

Explanation

Question 23 of 30

1

What is the bond angle on a molecule that contains 3 groups of paired electrons and 1 group of unpaired electrons?

Select one of the following:

107
104.5
109.5
120

Explanation

Question 24 of 30

1

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First ionisation enthalpy ( decreases, increases, stays the same ) down the group.

Explanation

Question 25 of 30

1

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First ionisation enthalpy ( increases, decreases, stays the same ) across a period.

Explanation

Question 26 of 30

1

Group 2 oxides and hydroxides are ❌.

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bases

acidic

neutral

Explanation

Question 27 of 30

1

The colour of the flame test for Sodium is:

Select one of the following:

orange-yellow
crimson
brick red
green

Explanation

Question 28 of 30

1

Fill the blank space to complete the text.

To test for sulphates you add HCl and and it turns white.

Explanation

Question 29 of 30

1

Emission spectra contain black lines on a coloured background.

Select one of the following:

True
False

Explanation

Question 30 of 30

1

Electrons ❌ energy as they ❌ from a higher energy level to a lower one.

Drag and drop to complete the text.

release

drop

take in

jump

	Created by Alex Lyes almost 8 years ago

A-Level Chemistry Quiz on OCR B A Level Chemistry Elements of Life, created by Alex Lyes on 23/05/2016.

OCR B A Level Chemistry Elements of Life

Question 1 of 30

Fill the blank spaces to complete the text.

Isotopes of an element have the atomic number but mass numbers

Explanation

Question 2 of 30

Fill the blank space to complete the text.

The relative mass is the mass of an element compared to an atom of C-12.

Explanation

Question 3 of 30

A mass spectrometer measures:

Select one of the following:

Explanation

Question 4 of 30

Work out the number of moles in 5.10g of Aluminium oxide.

Select one or more of the following:

Explanation

Question 5 of 30

Percentage yeild =

Select one of the following:

Explanation

Question 6 of 30

Compounds that have water molecules incorporated into them are called water of crystalisation.

Select one of the following:

Explanation

Question 7 of 30

Fill the blank spaces to complete the text.

Methyl orange indicators turn from to when you add acid to an alkali.

Explanation

Question 8 of 30

Fill the blank spaces to complete the text.

Phenolphthalein turns from to when you add acid to an alkali.

Explanation

Question 9 of 30

Shells further away from the nucleus have a lower energy level than the ones closer to it.

Select one of the following:

Explanation

Question 10 of 30

Select from the dropdown list to complete the text.

Orbitals can contain up to 2 1 4 3( 2, 1, 4, 3 ) electrons.

Explanation

Question 11 of 30

Click on the orange point and select the correct answer.

Which type of orbital is this?

Explanation

Question 12 of 30

Click on the orange point and select the correct answer.

What type of orbital is this?

Explanation

Question 13 of 30

Electrons fill up the lowest energy sub-shells first.

Select one of the following:

Explanation

Question 14 of 30

How many electrons does a full p sub-shell contain

Select one or more of the following:

Explanation

Question 15 of 30

Ionic compounds ❌ electricity when they are ❌ or dissolved because the ions are ❌.

Drag and drop to complete the text.

Explanation

Question 16 of 30

Fill the blank space to complete the text.

Ionic compounds are often in water.

Explanation

Question 17 of 30

Select from the dropdown list to complete the text.

In a covalent bond, the positive nuclei are attracted electrostatically ionically intramolecularly( electrostatically, ionically, intramolecularly ) to the shared electrons.

Explanation

Question 18 of 30

Dative covalent bonds are when both electrons come from the same atom.

Select one of the following:

Explanation

Question 19 of 30

Giant covalent structures can conduct electricity.

Select one of the following:

Explanation

Question 20 of 30

❌ is an example of a giant covalent structure.

Orbitals can contain up to ( 2, 1, 4, 3 ) electrons.

In a covalent bond, the positive nuclei are attracted ( electrostatically, ionically, intramolecularly ) to the shared electrons.

Metalic structures contain ( delocalised, no, localised ) electrons.

First ionisation enthalpy ( decreases, increases, stays the same ) down the group.

First ionisation enthalpy ( increases, decreases, stays the same ) across a period.