Question

which compound is the only gas at room temperature and pressure?

Answer 1

Answer:

Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature and are found as diatomic molecules (H2, N2, O2, F2, Cl2).

Explanation:

C8H18 has a bigger mass/electron cloud, so it has stronger dispersion forces than F2. This means that F2 has the weakest imf's, and is easiest to vaporize, and is most likely to be a gas.

VII A group in the periodic table contains elements that are all gases at room temperature. These are known as the halogen series.

Answer 2

Answer:

which compound is the only gas at room temperature and pressure?

chlorine,bromine,iodine.

Explanation:

which compound is the only gas at room temperature and pressure?

if the options  are given in the question like chlorine, benzene and iodine

then correct answer will be chlorine.

At normal temperature, gases of the elements hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all present (H2, N2, O2, F2, Cl2).