Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

1.Chem A-level > 3.2.2 Group 2 PPQs > Flashcards

3.2.2 Group 2 PPQs Flashcards

1
Q

Why does the gas turn damp litmus paper blue when NH4+ is heated with NaOH?

A

Formation of NH3, Ammonia gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Describe the bonding in magnesium.

A

Attraction between lattice of Mg2+ ions and delocalised

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

State what is observed when dilute aqueous sodium hydroxide is added to separate solutions of magnesium chloride and barium chloride.

A

Observation with MgCl2: white ppt
Observation with BaCl2: no visible change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe how a student could distinguish between aqueous solutions of magnesium chloride, MgCl2, and aluminium chloride, AlCl3, using one simple test-tube reaction.

A

NaOH
white precipitate / white solid with MgCl2
(white) ppt which dissolves in excess (NaOH) with AlCl3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly

1.Chem A-level (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions