A. they are present in the same physical state
B. they are strong reducing agents
C. their reactivity decreases down the group
D. they exist as monoatomic molecules
Correct Answer:
Option C – their reactivity decreases down the group
A. they are present in the same physical state
B. they are strong reducing agents
C. their reactivity decreases down the group
D. they exist as monoatomic molecules
Correct Answer:
Option C – their reactivity decreases down the group
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