10jonty.bird
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C2 quiz

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10jonty.bird
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C2 quiz

Question 1 of 16

1

Alkali metals react with non-metals to form __________.

Select one of the following:

  • Noble gases

  • Acids

  • Macromolecules

  • Hydroxides

  • Ionic compounds

  • Insoluble Bases

  • Hydrogen

Explanation

Question 2 of 16

1

Ionic compounds are held together by ___________.

Select one of the following:

  • Strong ionic bonds

  • Strong intermolecular forces

  • Very strong Covalent Bonds

  • Delocalised electrons

  • Strong Electrostatic forces

Explanation

Question 3 of 16

1

Ionic bonds dissolve in water.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 16

1

When atoms share electrons they form __________.

Select one of the following:

  • Ionic bonds

  • Covalent bonds

  • Strong intermolecular forces

  • Electrostatic forces

  • Macromolecules

Explanation

Question 5 of 16

1

Simple molecules do not conduct electricity because . . . .

Select one of the following:

  • They have delocalised electrons.

  • The intermolecular forces are too weak.

  • The molecules have no overall charge.

  • There are no layers.

  • They are too large.

Explanation

Question 6 of 16

1

When melted ionic compounds conduct electricity.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 16

1

What function of Nitinol makes it particularly useful in braces.

Select one of the following:

  • It is a shape memory alloy.

  • It is not broken down by saliva.

  • It can be controlled by remote as to where the teeth move.

  • It is very hard so the teeth cannot move.

Explanation

Question 8 of 16

1

Not really a proper question just useful info in the explanation. RAM stand for Relative Molecular mass

Select one of the following:

  • True
  • False

Explanation

Question 9 of 16

1

Gas chromatography uses ________, to help identify the substance.

Select one of the following:

  • The speed of the substance in column

  • The time taken to travel through the column

  • The size of the substance

  • The mass of the substance

  • The number of substances

Explanation

Question 10 of 16

1

The gas chromatography column can be linked to a(n) __________, to identify the substances leaving the column.

Select one of the following:

  • Microscope

  • Oscilloscope

  • Set of accurate scales

  • Mass spectrometer

Explanation

Question 11 of 16

1

Soluble salts can be made from:

Select one or more of the following:

  • Halogens

  • Metals

  • Acids

  • Insoluble bases

  • Oxygen

  • Alkalis

  • Water

Explanation

Question 12 of 16

1

Insoluble salts can be made by mixing appropriate solutions of _______ so that a(n) __________ is formed.

Select one or more of the following:

  • Acid(s)

  • Bases(s)

  • Hydroxide(s)

  • Alkali(s)

  • Precipitate

  • Gas

  • Ions

  • sodium hydroxide

Explanation

Question 13 of 16

1

Alkalis: (tick the correct statements)

Select one or more of the following:

  • Have a pH lower than 7

  • Turn UI green, blue and red.

  • Are also known as insoluble bases

  • Are also known as soluble hydroxides

  • Are also known as insoluble hydroxides

  • Can come in the form metal oxides

Explanation

Question 14 of 16

1

At the negative electrode, positively charged ions ________ electrons, this is known as _________.

Select one or more of the following:

  • Gain

  • Lose

  • Create

  • Neutralisation

  • Oxidation

  • Reduction

Explanation

Question 15 of 16

1

At the positive electrode, _________ charged ions _______ electrons, this is known as _________.

Select one or more of the following:

  • Negatively

  • Positively

  • Gain

  • Lose

  • Neither decrease nor increase electrons

  • Oxidisation

  • Reduction

  • Neutralisation

Explanation

Question 16 of 16

1

In electrolysis the positive electrode is usually made of ____________

Select one of the following:

  • Francium

  • Steel

  • Copper

  • Boron

  • Iron

  • Carbon

  • Charcoal

  • Plastic

  • Wood

Explanation

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