AIIMS UG 2013 Mock Test

The negative sign means the energy of an electron bound to the nucleus is lower than it would be at infinite distance.

Larger the value of $n$, the larger is the orbit radius.

The equation can be used to calculate the change in energy when the electron changes orbit.

For $n=1$, the electron has a more negative energy than for $n=6$, which means the electron is more loosely bound in the smallest allowed orbit.

${\text{H}}_2\text{O}$ and alcohol

${\text{Cl}}_2$ and ${\text{CCl}}_4$

$\text{HCl}$ and $\text{He}$ atoms

${\text{SiF}}_4$ and $\text{He}$ atoms

Structure with 5 carbon main chain

Structure with 6 carbon main chain, carboxylic acid at C1, -OH at C2, ethyl at C3, methyl at C4, double bond at C3, triple bond at C5

Structure with hydroxy at C3

Structure with methyl at C3