NEET 2024 Question Paper Mock Test

The most stable carbocation among the following is:

Given below are two statements:Statement I: Both $[{\text{Co(NH}}_3{\text{)}}_6{]}^{3+}$ and $[{\text{CoF}}_6{]}^{3-}$ complexes are octahedral but differ in their magnetic behavior.Statement II: $[{\text{Co(NH}}_3{\text{)}}_6{]}^{3+}$ is diamagnetic, whereas $[{\text{CoF}}_6{]}^{3-}$ is paramagnetic.

$1\text{gram}$ of sodium hydroxide was treated with $25\text{mL}$ of $0.75\text{M HCl}$ solution. The mass of sodium hydroxide left unreacted is equal to:

Given below are two statements:Statement I: The boiling point of hydrides of Group 16 elements follows the order ${\text{H}}_2\text{O}>{\text{H}}_2\text{Te}>{\text{H}}_2\text{Se}>{\text{H}}_2\text{S}$.Statement II: ${\text{H}}_2\text{O}$ has the highest boiling point due to extensive hydrogen bonding.

Arrange the following elements in increasing order of first ionization enthalpy: $\text{Li, Be, B, C, N}$.