Statement I : The physical state of halogen molecules may be solids, liquids or gases at room temperature.
Statement 2 : The halogen molecules are considered as nonpolar and by increasing mass the dispersion forces between them increases.

true, true, correct explanation

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true, true, not correct explanation

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true, false

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false, true

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Solution

The correct option is A true, true, correct explanation
Statement I : The physical state of halogen molecules may be solids, liquids or gases at room temperature.
Statement 2 : The halogen molecules are considered as nonpolar and by increasing mass the dispersion forces between them increases. With increase in the dispersion forces, the state changes from gas (fluorine and chlorine) to liquid (bromine) to solid (iodine).

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Similar questions

I

. Under standard conditions the states of the elemental forms of the halogens are: iodine-solid, bromine-liquid, chlorine-gas, fluorine-gas.

I I

. Diatomic halogen molecules exhibit dispersion forces and increase in mass moving down through the family.

Q. State whether True or False, and correct the statements if false:
(i) the molecules of solids are tightly packed.

Q. Assertion :Helium will have fewer dispersion forces between its atoms than the other noble gases. Reason: As the mass of nonpolar atoms and molecules increases, dispersion forces increase.

State True or False.

The

C H_{2} C l_{2}

molecule may be polar or nonpolar depending on its geometry.

In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below in each question.

Assertion (A) Three states of matter are the result of the balance between intermolecular forces and thermal energy of the molecules.

Reason (R) Intermolecular forces tend to keep the molecules together but the thermal energy of molecules tends to keep them apart.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true and R is not the correct explanation of A

(d) A is false but R is true

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Statement I : The physical state of halogen molecules may be solids, liquids or gases at room temperature.Statement 2 : The halogen molecules are considered as nonpolar and by increasing mass the dispersion forces between them increases.

Statement I : The physical state of halogen molecules may be solids, liquids or gases at room temperature.
Statement 2 : The halogen molecules are considered as nonpolar and by increasing mass the dispersion forces between them increases.