A-Level Chemistry 2

Question 1

What is the pH of a 0.01 mol/dm³ solution of hydrochloric acid?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 2

What is the test for an aldehyde using Tollens' reagent?

Accepted Answer

A silver mirror forms on the test tube walls

Answer

A green precipitate forms

Answer

A blue solution turns colourless

Answer

Bubbles of gas are produced

Question 3

What is the molecular geometry of SF₆ according to VSEPR theory?

Accepted Answer

Octahedral

Answer

Tetrahedral

Answer

Trigonal bipyramidal

Answer

Square planar

Question 4

In electrochemistry, what happens at the cathode during electrolysis?

Accepted Answer

Reduction occurs — cations gain electrons

Answer

Oxidation occurs

Answer

No reaction occurs

Answer

Anions lose electrons

Question 5

What is a peptide bond in the context of A-Level organic chemistry?

Accepted Answer

A covalent bond formed between the amino group of one amino acid and the carboxyl group of another through a condensation reaction

Answer

A bond between two sugars

Answer

A hydrogen bond in proteins

Answer

An ionic bond in amino acids

Question 6

What is the first ionisation energy trend across Period 3 of the Periodic Table?

Accepted Answer

It generally increases across the period with dips at Al and S due to electron configuration effects

Answer

It decreases uniformly

Answer

It stays constant

Answer

It decreases then increases