Question

Cation and anion combines in a crystal to form following type of compound (a) ionic (b) metallic (c) covalent (d) dipole-dipole.

Answer 1

Answer: ionic compound

Explanation:

Since , cation has + ve charge and

           anion has - ve charge.

so when they form a compound ...

it is in the form of x+y- which forms an ionic bond

(ionic compound has a good amount of difference in charge)

=ionic bond

Answer 2

Answer:

The correct Option is A) Ionic Compound

Explanation:

Ionic compounds are compounds composed of ions, charged particles that form when an atom

(or group of atoms) gains or loses electrons.

(A cation is a positively charged ion; an anion is a

negatively charged ion.)

Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules. Molecular compounds are electrically neutral.

Metal + Nonmetal → ionic compound (usually)

Metal + Polyatomic ion → ionic compound (usually)

Nonmetal + Nonmetal → covalent compound (usually)

Hydrogen + Nonmetal → covalent compound (usually)

Writing Formulas of Ionic Compounds

1. The positive ion is given first, followed by the monatomic or polyatomic anion.

2. The subscripts in the formula must produce an electrically neutral formula unit. (That is, the

total positive charge must equal the total negative charge.)

3. The subscripts should be the smallest set of whole numbers possible.