Chemical Bonding Set 6

Results

#1. Which of the following molecules has a pyramidal structure?

CH4

NH3

H2O

C2H4

#2. The bond angle in water is

109–5o

104.5o

107.0o

120o

#3. During the formation of chemical bond, the potential energy of the system

decreases

increases

does not change

none of these

#4. H2O molecule has

no lone pair

one lone pair

two lone pairs

none of these

#5. NH3 molecule has

no lone pair

one lone pair

two lone pairs

three lone pairs

#6. In NH3 the covalent bond formed are due to

s–sp overlap

s–sp2 overlap

s–sp3 overlap

sp2–sp2 overlap

#7. Which of the following is largest atom

#8. As compared to covalent compounds, ionic compounds generally have

low melting points and low boiling points

low melting points and high boiling points

high melting points and high boiling points

high melting points and low boiling points

#9. The attractive force that holds atoms together in a molecule is called

force of attraction

electrostatic force

bond

chemical bond

#10. Which of the following bonds will be formed between alkali metals and halogens

ionic

covalent bond

metallic bond

coordinate covalent bond

Finish