NEET Chemistry MCQs

${\rm{FeS}}{{\rm{O}}_4}$

${\rm{CuS}}{{\rm{O}}_4}$

${\rm{Cu}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}$

${\rm{AgN}}{{\rm{O}}_3}$

4$f$- orbitals more diffused than the 5$f$-orbitals

Lesser energy difference between 5$f$ and 6$d$ than between 4$f$ and 5$d$-orbitals

More energy difference between 5$f$ and 6$d$ than between 4$f$ and 5$d$-orbitals.

More reactive nature of the actinoides than the lanthanoides

$f$-block

$d$-block

High atomic masses

Radioactive series

Absorption of light from UV range

Emission of light

Presence of unpaired electrons in s and $p$ orbitals

Complimentary colours to the absorbed light

Co

Ni

Cu

Al

Lead oxide

Copper oxide

Sodium oxide

Manganese dioxide

${\rm{T}}{{\rm{i}}^{2 + }}{\rm{\;and\;}}{{\rm{V}}^{2 + }}$

${\rm{F}}{{\rm{e}}^{2 + }}{\rm{and\;C}}{{\rm{u}}^{2 + }}$

${\rm{C}}{{\rm{r}}^{2 + }}{\rm{and\;F}}{{\rm{e}}^{2 + }}$

${\rm{C}}{{\rm{o}}^{2 + }}{\rm{and\;T}}{{\rm{i}}^{2 + }}$

Curium

Californium

Erbium

Americium

${\rm{BaZn}}{{\rm{O}}_2}$

${\rm{Ba}} + {\rm{Zn}}{{\rm{O}}_2}$

${\rm{BaCd}}{{\rm{O}}_2}$

${\rm{Ba}}{{\rm{O}}_2} + {\rm{Zn}}$

Al

Sn

Ag

Zn