Question

The basic character of hydrides of the 15 group elements decreases in the order

• 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. $SbH_3 > AsH_3 > PH_3 > NH_3$

Answer 1

Answer: (C)

$NH_3 > PH_3 > AsH_3 > SbH_3$

Answer 2

Basic character of hydrides of group 15 elements decreases down the group. This, basic character is in the order
${NH_3 > PH_3 > AsH_3 > SbH_3}$