Foundations in Chemistry Random Retrieval

This quiz contains all the questions in the Foundations in Chemistry section. The website will pick 10 questions at random.

1 / 10

What is the concentration of a solution of sodium hydroxide that is made by dissolving 20.0g of the solid in water and making the solution up to 250 cm³? (Relative atomic masses: Na = 23, O = 16, H = 1)

0.25 mol dm^-³

0.50 mol dm^-³

1.00 mol dm^-³

2.00 mol dm^-³

2 / 10

Dilute hydrochloric acid reacts with:

(i) zinc to form zinc chloride and hydrogen

(ii) copper(II) oxide to form copper(II) chloride and water

(iii) zinc carbonate to form zinc chloride, carbon dioxide and water

(iv) copper to form copper(II) chloride and hydrogen

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

3 / 10

The ionic equation for a neutralisation reaction is:

H⁺_(aq) + OH^-_(aq) -> H₂O_(l)

H₂O_(l) + H⁺_(aq) -> H₃O⁺_(aq)

H₂O_(l) + H₂O_(l) -> H₃O⁺_(aq)

HCl_(aq) -> H⁺_(aq) + Cl^-_(aq)

4 / 10

Which of the following is not a typical property of most metals:

Sonorous

High Resistivity

Ductile

Strong

5 / 10

Which of these materials owe their strength to intermolecular forces?

marble

silica

steel

nylon

6 / 10

Using the basic rules of VSEPR, what would you expect the bond angle to be in H₂S?

90o

107o

120o

104.5o

180o

109.5o

7 / 10

Which of these molecules are overall polar?

(i) CH₃Cl

(ii) CH₂Cl₂

(iii) CHCl₃

(iv) CCl₄

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

8 / 10

Which of these materials consist of a giant structure of ions?

(i) magnesium oxide

(ii) silicon dioxide

(iii) potassium fluoride

(iv) silicon chloride

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

9 / 10

10 / 10

Which one of the following is the electron configuration of a group 2 metal atom?

1s²

1s² 2s¹

1s² 2s² 2p⁶

1s² 2s² 2p⁶ 3s²

Your score is

0%

Recent Posts

Categories