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The correct option is (b) three States of matter

The best explanation: In a molecule, intermolecular FORCES always tend to keep molecules with each other while the thermal ENERGY always TRIES to SEPARATE them. So the result of balancing between intermolecular energy and thermal energy is three States of matter.

Correct CHOICE is (C) 3

Easiest explanation: Thermal can TRANSFER through WAYS, there are namely conduction, convection, and radiation. Conduction needs direct contact of particles, convection is possible to fluids and radiation through electromagnetic waves.

The correct option is (c) Moon

To explain I WOULD say: THERMAL energy is ALSO KNOWN as heat energy, it’s source s are the same as heat energy. As we know that micro-oven produces heat waves to raise FOOD’s temperature and bake them, sun for solar energy and heater produces heat. Moon doesn’t.

The correct answer is (b) both thermal and Kinetic energy

To EXPLAIN I WOULD SAY: A boiling kettle produces HEAT, and causes the liquid’s temperature to rise. As the temperature rises, it results in thermal energy, but as kinetic energy is a type of kinetic energy, the answer both thermal and kinetic energy is the BEST option.

The correct OPTION is (B) Vibration

Explanation: Temperature INCREASES due to the vibration of particles. As we know that temperature is directly proportional to the thermal ENERGY, the vibration of particles results in the rise the thermal energy.

Correct ANSWER is (a) True

For explanation: As thermal energy is a TYPE of kinetic energy, the faster the object moves, the higher the thermal energy. The measure of an average of kinetic energy is thermal energy. So the above STATEMENT REGARDING thermal energy is true.

The correct choice is (a) KINETIC energy

For explanation I WOULD SAY: Thermal energy is ALSO defined as an average measure of kinetic energy. It is a result of a body’s motion and that of its atoms and molecules. Thermal energy, which is an example of kinetic energy is responsible for a body’s motion.

The correct choice is (C) Milk at 50°

Best explanation: As we know that, the THERMAL energy is dependent on TEMPERATURE, among the OPTIONS milk at given temperature has a higher temperature, so milk posses higher thermal energy than OTHERS (temperature is proportional to thermal energy).

Right choice is (c) Methane molecule

To explain I would say: As PER the above statement, substance PROPERTIES and structure is DETERMINED as per the hydrogen bond present in them, but in a methane molecule, there is no hydrogen bond. So it MAY not be an example.

The CORRECT choice is (a) 1/r^3

The best explanation: The energy between TWO POLAR molecules which are stationary, is inversely proportional to the cube of the distance between the molecules, in the CASE of dipole-dipole intercations. This interaction is stronger than the London forces.

Right option is (B) Dipole-induced dipole interactions

The best I can EXPLAIN: Dipole-induced dipole interactions occur between a molecule of permanent dipole and molecule LACKING permanent dipole. The dipole gets induced to the other molecule in this PARTICULAR INTERACTION.

Correct choice is (d) london, ion-ion

For explanation I would say: Dipole-Dipole forces are STRONGER than London forces and WEAKER than ion-interactions. As only the partial charges are INVOLVED. London forces have no charges, and ion-ion forces have FULL charges.

Right option is (a) dipole-dipole intercations

Easiest explanation: Dipole-Dipole interactions occur between molecules having permanent dipoles. And ALSO the ends of dipoles POSSES partial CHARGE which represented by a Greek letter δ. In an HCl MOLECULE, the same type of interactions occur.

Correct CHOICE is (d) 1/r^6

The explanation: The INTERACTION ENERGY between two atoms or molecules experiencing dispersion or London forces is inversely proportional to the sixth power of the distance between those molecules when found, experimentally.

Correct option is (b) Van der Waals

The BEST I can explain: A Dutch SCIENTIST named Johannes van der Waals found out the REASON for real gas BEHAVIOR’s deviation from ideal gas behavior. And he said that those forces which were named van der Waals were RESPONSIBLE.

The correct answer is (a) DISPERSION force

For explanation I would say: Electrically SYMMETRICAL atoms and non-polar molecules having zero DIPOLE movement due to their electron DISTRIBUTION may sometimes develop a momentary dipole also known as London force or the Dispersion forces.