The bond between two identical non - metal atoms has a pair of electrons :

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

A. CaCI₂      1. Ionic bond

B. C₂H₄       2. Double bond

C. CHCI₃     3. Covalent bond

D. NH₄CI     4. Coordinate bond

Consider the following statements.

1. The number of $\alpha$-bond in H₂ molecule is one.

2. The number of $\pi$-bond in N₂ molecule is two.

3. The maximum number of hydrogen bonds in a H₂O molecule is four.

Which of the above are correct?

Consider the following statements:

$1$. A bond is formed by the transfer of electrons between the atoms of the element is called an ionic bond.

$2$. A bond is formed by the sharing of electrons between the atoms of the elements is called a covalent bond.

Which of the statements given above is/are correct?

Consider the following statements.

1. Formation of cations occurs by loss of electrons.

2. Formation of anions occurs by gain of electrons.

Which of the statement given above are correct?