Chemical Bonding And Molecular Structure Question 325
Question: An atom of an element A has three electrons in its outermost shell and that of B has six electrons in the outermost shell. The formula of the compound between these two will be [CPMT 1974, 84; RPMT 1999]
Options:
A) $ A_3B_4 $
B) $ A_2B_3 $
C) $ A_3B_2 $
D) $ A_2B_3 $
Show Answer
Answer:
Correct Answer: B
Solution:
Valency of A is 3 while that of B is 2 so according to Criss Cross rule the formula of the compound between these two will be $ A_2B_3 $ .
