1. Which of the following compounds is covalent?   KCl   NH3   MgCl2   LiCl   Hint Half-n-half Clue   2. An atom which gains an electron forms   a hydrogen bond.   a cation.   a covalent bond.   an anion.   Half-n-half Clue   3. Ionic compounds conduct electricity in   Powdered State.   Crystalline State.   Amorphous State.   Fused state or solution state.   Half-n-half Clue   4. A chemical bond formed by exchange of electrons is called   a hydrate bond.   a covalent bond.   an ionic bond.   a magnetic bond.   Half-n-half Clue   5. Inert gases do not react with any other element because   their outermost electron level is filled with 8 electrons.   their nucleus is very small.   the pressure is not high enough.   the temperature is not high enough.   Half-n-half Clue   6. The name of the compound with the formula KCl is   Chloride Potassium   Potassium Chlorate   Chlorate Potassium   Potassium Chloride   Half-n-half Clue   7. The shape of a CH4 molecule is   Tetrahedral   Planar   Spherical   Pyramidal   Half-n-half Clue