1. An atom which gains an electron forms   a hydrogen bond.   an anion.   a covalent bond.   a cation.   Hint Half-n-half Clue   2. Which of the following compounds is covalent?   MgCl2   LiCl   KCl   NH3   Half-n-half Clue   3. Na+ combines with Cl- to form the compound NaCl. The charge on NaCl is   neutral.   positive.   a function of the conditions of formation.   negative.   Half-n-half Clue   4. Atoms take part in bond formation to   increase their charge density.   neutralize their charge.   attain a stable electronic configuration.   increase their energy.   Half-n-half Clue   5. High solubility of alcohol in water is due to the formation of   ionic bonds.   paramagnetic bonds.   hydrogen bonds.   covalent bonds.   Half-n-half Clue   6. The aim of bonding is to attain   the nearest noble gas structure.   lower stability.   higher charge.   higher potential energy.   Half-n-half Clue   7. The shape of a CH4 molecule is   Pyramidal   Planar   Spherical   Tetrahedral   Half-n-half Clue