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

Hydrogen is oxidised when it reacts with:

(i) oxygen to form water

(ii) nitrogen to form ammonia

(iii) chlorine to form hydrogen chloride

(iv) sodium to form sodium hydride

2 / 10

The oxidation number of sulfur in sulfuric acid, H2SO4, is:

3 / 10

Which of these reactions is an acid-base reaction?

4 / 10

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

5 / 10

Which of these true statements can help to explain why iodine is a solid while chlorine is a gas at room temperature and pressure?

(i) iodine molecules have a larger surface area than chlorine molecules

(ii) iodine atoms are heavier than chlorine atoms

(iii) the outer shell electrons in iodine atoms are further from the nucleus than they are in chlorine atoms

(iv) the charge on the nucleus of an iodine atom is larger than the charge on the nucleus of a chlorine atom

6 / 10

Which of these materials owe their strength to intermolecular forces?

 

7 / 10

In which of these molecules do the intermolecular forces arise largely from hydrogen bonding?

8 / 10

A chloride ion and an argon atom have the same:

(i) number of protons

(ii) number of electrons

(iii) atomic number

(iv) electron configuration

9 / 10

What is the empirical formula of an oxide of sodium which contains 74.2% sodium?

10 / 10

What is the electronic configuration of copper? Enter your answer in the following format 1s2 2s2 etc. ((note the space between each sub-shell!) Follow the aufbau order of sub-shell filling.

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