JEE Main 2024 Solutions
JEE Main Chemistry (2024)

Among the following oxides of p - block elements, number of oxides having amphoteric nature is ______. $\text{Cl}_2\text{O}_7, \text{CO}, \text{PbO}_2, \text{N}_2\text{O}, \text{NO}, \text{Al}_2\text{O}_3, \text{SiO}_2, \text{N}_2\text{O}_5, \text{SnO}_2$

According to the wave particle duality of matter by de-Broglie, which of the following graph plot presents most appropriate relationship between wavelength of electron ($\lambda$) and momentum of electron (p)?

Given below are two statements: Statement (I) : The orbitals having same energy are called as degenerate orbitals. Statement (II) : In hydrogen atom, $3p$ and $3d$ orbitals are not degenerate orbitals. In the light of the above statements, choose the most appropriate answer from the options given below:

The number of electrons present in all the completely filled sub shells having $n=4$ and $s=+\frac{1}{2}$ is ______.
(Where $n =$ principal quantum number and $s =$ spin quantum number)

In case of isoelectronic species the size of $\text{F}^-$, Ne and $\text{Na}^+$ is affected by:

If IUPAC name of an element is "Unununium" then the element belongs to $\text{n}^{\text{th}}$ group of Periodic table. The value of n is _______.

Given below are two statements : Statement (I) : The 4f and 5f - series of elements are placed separately in the Periodic table top reserve the principle of classification. Statement (II) : s-block elements can be found in pure form in nature. In the light of the above statements, choose the most appropriate answer from the options given below: