Example of ionic bond are _____.

Match List I with List II and select the correct answer using the codes given below the List.

       List I                                List II
(Covalent compound)        (Geometrical shape)

A. Water                          1. Angular

B. Ammonia                     2. Pyramid

C. Carbon dioxide           3. linear

D. Methane                     4. Tetrahedral

Consider the following statements.

1. Probability of finding the electron in the bonding molecular orbital is more than combining atomic orbitals.

2. Bonding molecular orbitals are formed when different sign of orbitals are overlapped.

Which of the statements given above is/are correct?

Which of the following element combinations will form ionic compounds?

$1. \mathrm{Ca} (\mathrm{Z}=20)$ and $\mathrm{Ti} (\mathrm{Z}=22)$

$2. \mathrm{Si} (\mathrm{Z}=14)$ and $Br (\mathrm{Z}=35)$

$3. Mg (\mathrm{Z}=12)$ and $\mathrm{Cl} (\mathrm{Z}=17)$

Select the correct answer using the codes given below.