EP1 Chemistry

• A

• B

• C

• D

• 1

• 1.5

• 2.5

• 3

Based on the given information, an ionic bond will be formed between

• K and F

• C and O

• K and H

• C and H

Which of the following molecules DOES NOT have any permanent dipole?

• SO₂

• AlCl₃

• H₂O

• NH₃

• I and II both

• II and III both

• I and IV both

• III and IV both

The temperature of land rises more quickly than that of the sea because the specific heat of soil is

• less than water.

• more than water.

• equal to water.

• twice than water.

• Evaporation

• Surface tension

• Vapour pressure

• Diffusion

• hydrogen bonding.

• polar covalent bond.

• dipole-dipole interaction.

• london dispersion forces.

The cubic and octahedral forms of NaCl are examples of

• isomers.

• allotropes.

• isomorphism.

• polymorphism.

When a substance moves from a solid to a liquid state, all of the following changes occur EXCEPT

• kinetic energy of the molecules decreases.

• molecules become more disordered.

• intermolecular forces become weaker.

• molecule become further separated.