CIE iGCSE Co-Ordinated Science C8.2 Group I properties Exam Style Questions Paper 2
Question
All Group I metal compounds and all Group II metal chlorides are soluble in water.
All Group II metal carbonates and barium sulfate are insoluble.
Which method is used to prepare barium sulfate using barium carbonate?
(A) direct combination of solid barium carbonate and dilute sulfuric acid
(B) reaction of solid barium carbonate and hydrogen chloride gas, followed by reaction with dilute sulfuric acid
(C) reaction of aqueous barium carbonate with dilute hydrochloric acid, followed by reaction with aqueous sodium sulfate
(D) reaction of solid barium carbonate with dilute hydrochloric acid, followed by reaction with aqueous sodium sulfate
▶️Answer/Explanation
Ans: D
Question
Which description of the Group I elements is correct?
(A) relatively hard metals
(B) relatively soft metals
(C) low melting point non-metals
(D) unreactive gases
▶Answer/Explanation
Ans :B
Question
Potassium is in Group I of the Periodic Table.
Which statement about potassium is correct?
(A) It is a relatively hard metal.
(B) It is less dense than lithium.
(C) It has a higher melting point than sodium.
(D) It reacts more vigorously with water than sodium.
▶️Answer/Explanation
Ans: D
Question
The elements in Group I of the Periodic Table are metals.
What are the trends as the group is descended?
(A) decrease in melting point and less reactive with water
(B) decrease in melting point and more reactive with water
(C) increase in melting point and less reactive with water
(D) increase in melting point and more reactive with water
▶️Answer/Explanation
Ans : B