Question Detail

CHM 102 Group II Objective Question
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Question

Which statement about the formation and stability of barium peroxide (BaO₂) is correct according to the document?
Options
A It is formed with difficulty and has low stability.
B It is formed with ease and increases in stability down the group.
Correct Answer
C It is only formed above 600°C.
D It readily decomposes into BaO and O₂.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 6 states, 'Group 2 metals form peroxides down the group' and 'Barium peroxide (BaO₂) is formed with ease and increase stability.' The 600°C condition is for beryllium's reactivity.

Hint

Look at the section 'Formation of Group II Oxides' and specifically the details about peroxides.

Question Info

Course: CHM 102
Topic: Group II
Type: Objective
Difficulty: Not specified
Question 1999 of 1999
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