Question

Which of the following describes an element?
A) h2o
B) ch4
C) h2so4
D) n2

Answer 1

The answer is D) n2, hope this helped!!

Answer 2

Answer: The correct answer is Option D.

Step-by-step explanation:

Element is defined as the substance which is made up of similar kind of atoms. For Example:
`H_2,Cl_2` etc...

Compound is defined as the substance which is made up of different kind of elements combined in a fixed ratio. For Example:
`CO_2,NO_2` etc...

For the given options:

Option A:
`H_2O`

This is a compound because it is made up of two types of atoms which are hydrogen and oxygen.

Option B:
`CH_4`

This is a compound because it is made up of two types of atoms which are hydrogen and carbon.

Option C:
`H_2SO_4`

This is a compound because it is made up of three types of atoms which are sulfur, hydrogen and oxygen.

Option D:
`N_2`

This is an element because it is made up of one type of atom which is nitrogen.

Hence, the correct answer is Option D.