Which of the following mixture of gases is likely to burn in flame
-
neon and hydrogen
- nitrogen and helium
- helium and neon
- neon and nitrogen
The correct answer is: A
Explanation
When heated, a mixture of hydrogen and neon gases emits light and burns in a flame.When heated, the atoms in the gas absorb energy, causing the electrons to jump to higher energy levels. When the electrons return to their original energy levels, they emit light.
A mixture of helium and nitrogen does not burn in a flame because both helium and nitrogen are non-flammable.
A mixture of helium and neon does not burn in a flame because helium and neon are non-reactive.
A mixture of neon and nitrogen will not burn in a flame because neither neon nor nitrogen are flammable.