Name the group of modern periodic table in which all elements are gases?
A. Group 18
B. Group 14
C. Group 12
D. Group 10
Answer: Option A
A. Group 18
B. Group 14
C. Group 12
D. Group 10
Answer: Option A
Red phosphorus is less reactive than yellow phosphorus because
A. it is red in colour
B. it is highly polymerised
C. it is insoluble in C2H5OH
D. it is hard
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