Foundations in Chemistry Random Retrieval

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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

Which of these compounds is an acid?

2 / 10

Which of these processes are endothermic?

(i) water freezing

(ii) ethanol evaporating

(iii) steam condensing

(iv) wax melting

3 / 10

Zinc conducts electricity because:

(i) the metal is polycrystalline

(ii) the atoms are close-packed

(iii) the atoms are in contact with neighbouring atoms

(iv) the bonding electrons are delocalised.

4 / 10

Zinc conducts electricity at room temperature because:

(i) the metal is solid

(ii) zinc is a d-block element

(iii) the atoms in the structure are in contact with each other

(iv) the bonding electrons are delocalised

5 / 10

Which of these sets of properties is that of a group 1 metal?

6 / 10

Which of these statements are true for the hydrides of group 5: NH3, PH3, AsH3 and SbH3:

(i) the molecules decrease in size down the group

(ii) the boiling point of ammonia is higher than expected from the general trend in values down the group

(iii) none of the molecules is polar

(iv) only ammonia is affected by hydrogen bonding

7 / 10

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

8 / 10

Which of these elements consist of a giant structure of atoms joined by covalent bonding?

(i) graphite

(ii) sulfur

(iii) diamond

(iv) iodine

9 / 10

How many p electrons are there in the outer shell of a halogen atom?

10 / 10

How many neutrons are there in an atom of boron with mass number 9 and atomic number 4?

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