P-Block Elements Ques 275
Question: The basic character of hydrides of the V-group elements decreases in the order
[CBSE PMT 1996]
Options:
A) $ SbH_3>PH_3>AsH_3>NH_3 $
B) $ NH_3>SbH_3>PH_3>AsH_3 $
C) $ NH_3>PH_3>AsH_3>SbH_3 $
D) $ SbH_3>AsH_3>PH_3>NH_3 $
Show Answer
Answer:
Correct Answer: C
Solution:
$ NH_3>PH_3>AsH_3>SbH_3 $ On moving down the group atomic size increases and availability of lone pair decreases. Hence, basic character decreases.
