Q1) What type of bond involves the sharing of electrons between atoms?

a) Ionic

b) Covalent

c) Metallic

d) Hydrogen

Q2) Which of the following molecules has a nonpolar covalent bond?

a) H2O

b) NH3

c) CO2

d) NaCl

Q3) How many electrons are shared in a single covalent bond?

a) 1

b) 2

c) 3

d) 4

Q4) What is the bond angle in a water molecule (H2O)?

a) 90°

b) 104.5°

c) 120°

d) 180°

Q5) Which type of bond results from the electrostatic attraction between positively and negatively charged ions?

a) Covalent

b) Metallic

c) Ionic

d) Hydrogen

Q6) What is the geometry of a molecule with four electron pairs around the central atom, where all the electron pairs are bonding pairs?

a) Linear

b) Trigonal planar

c) Tetrahedral

d) Octahedral

Q7) Which of the following molecules has polar covalent bonds but is nonpolar overall?

a) NH3

b) H2O

c) CO2

d) CH4

Q8) How many electrons are there in a single bond?

a) 1

b) 2

c) 3

d) 4

Q9) What is the molecular shape of a molecule with two bonding pairs and two lone pairs of electrons around the central atom?

a) Linear

b) Bent

c) Trigonal planar

d) Tetrahedral

Q10) Which of the following compounds contains an ionic bond?

a) H2O

b) NH3

c) CO2

d) NaCl

Q11) What is the name for a bond formed between a metal and a non-metal?

a) Covalent bond

b) Metallic bond

c) Ionic bond

d) Hydrogen bond

Q12) How many electrons are typically involved in a double covalent bond?

a) 1

b) 2

c) 3

d) 4

Q13) Which of the following molecules has a trigonal pyramidal shape?

a) CH4

b) NH3

c) H2O

d) CO2

Q14) Which of the following substances has London dispersion forces as its primary intermolecular force?

a) H2O

b) NH3

c) CO2

d) O2

Q15) What is the shape of a molecule with three electron pairs around the central atom, where one pair is a lone pair?

a) Linear

b) Trigonal planar

c) Bent

d) Tetrahedral

Q16) What is the name of the type of bond that forms between hydrogen and fluorine in a molecule of HF?

a) Covalent

b) Ionic

c) Metallic

d) Hydrogen

Q17) Which of the following molecules exhibits hydrogen bonding?

a) H2O

b) CO2

c) CH4

d) N2

Q18) What is the shape of a molecule with two bonding pairs and no lone pairs around the central atom?

a) Linear

b) Trigonal planar

c) Bent

d) Tetrahedral

Q19) What is the bond angle in a molecule with a tetrahedral geometry?

a) 90°

b) 109.5°

c) 120°

d) 180°

Q20) Which of the following molecules has a linear shape?

a) H2O

b) NH3

c) CO2

d) CH4