Which one of the following is metalloid?

Predict the mode of hybridization in the central atom of the molecule having trigonal and tetrahedral structures. 1

Ammonia molecule has got trigonal pyramidal geometry even though nitrogen of ammonia gas gets sp3 hybridization. Give reasons. 1

How would you predict the geometry of the ammonia molecule on the basis of VSEPR theory? 1

What kind of hybridization results in trigonal planer geometry? 1

Which hybridization results in a linear geometry. Give an example. 1

What kind of hybridization results in tetrahedral geometry? Give an example. 1

Write two important features of hybrid orbitals. 1

What is the mode of hybridization for carbon in ethyne and oxygen in water? 1

Predict the mode of hybridization of B in BF3. write two features. 1

State any two proper conditions and mode of hybridization of C in C2H2? 1