Chemistry · CHEMICAL BONDING AND MOLECULAR STRUCTURE

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In the formation of calcium fluoride (\( \text{CaF}_2 \)), calcium is assigned a positive electrovalence of two. Reason (R): In a water molecule, hydrogen atoms attain a duplet of electrons while the oxygen atom attains an octet of electrons. In the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.