Question Detail

CHM 102 Sblock elements Objective Question
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Question

Which statement accurately describes the solubility trend of Group 1 carbonates in water?
Options
A All Group 1 carbonates are soluble in water, with solubility decreasing from Li to Cs.
B Group 1 carbonates are generally insoluble, except for lithium carbonate.
C Group 1 carbonates are soluble in water, except for lithium carbonate, and solubility increases from Li to Cs.
Correct Answer
D Solubility in water is independent of the metal ion size or ionic character.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 20 states: 'Group 1 carbonates are soluble in water except lithium carbonate' and 'Solubility in water increases from Li to Cs because of; ✓ high lattice energy in Li₂CO₃ due to small size of Li ✓ There is an Increase in ionic character down the group, so solubility increases down the group'.

Hint

Consult the 'Solubility in water' section for Group 1 carbonates on page 20, paying attention to both the exception and the trend.

Question Info

Course: CHM 102
Topic: Sblock elements
Type: Objective
Difficulty: Not specified
Question 1802 of 1999
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