Which is a chemical property of hydrogen?
a) it is a light gas.
b) it is a combustible gas.
c) it is a colorless gas.
d) it has a boiling point of -252.87°c.
e) it is a good conductor of electricity.

The correct answer is option B) It is a combustible gas.

Explanation:

Hello!

Let's solve this!

The chemical properties affect the structures of the molecules and the physical properties do not affect it.

Among the physical properties of hydrogen, we find that it is a colorless gas, the boiling point and that it is a light gas.

Among the chemical properties proposed here, the option is that it is a combustible gas. Since after combustion the gas lost its original structure.

Then, we will conclude that the correct answer is option B) It is a combustible gas.

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.