1. Colegio San Patricio
Quiz - Covalent Bonds
1.- Covalent bonding normally occurs between which type of elements?
a) metals only b) nonmetals only c) metal and nonmetals
2.- The electron dot diagram that correctly shows the bonding in H2N2 is: a)
b) c)
3.- Which Lewis-dot structure represents a substance that contains a nonpolar covalent
bond?
a) b) c)
4.- Which pair of bonds will share electrons when a bond is formed between them?
a) Ba and I b) Br and He c) Cl and Br d) Li and I
5.- Which formula is described correctly?
a) BaCl2 is covalent b) H2O is ionic c) CH4 is covalent d) NaCl is metallic
6.- Electrons are shared unequally is a
a) polar covalent bond b) nonpolar covalent bond c) ionic bond
7.- What type of bond is formed between carbon and nitrogen in HCN?
a) single bond b) double bond c) triple bond d) ionic bond
8.- Which is the correct Lewis structure for COCl2?
a) b) c) d)
9.- Which Lewis structure is incorrect?
a) H-C C-H b) c) d)
10.- Identify the following molecular structures as linear, bent, trigonal planar, pyramidal or tetrahedral.