NTA JEE Mains 31th Jan 2024 Shift 1

The correct sequence of electron gain enthalpy of the elements listed below is A. Ar B. Br C. F D. S. Choose the most appropriate from the options given below:

The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitals A. have the same energy B. have the minimum overlap C. have same symmetry about the molecular axis D. have different symmetry about the molecular axis. Choose the most appropriate from the options given below:

For the given reaction, choose the correct expression of $$K_C$$ from the following: $$\text{Fe}^{3+}_{(aq)} + \text{SCN}^-_{(aq)} \rightleftharpoons (\text{FeSCN})^{2+}_{(aq)}$$

Consider the oxides of group 14 elements $$SiO_2, GeO_2, SnO_2, PbO_2, CO$$ and $$GeO$$. The amphoteric oxides are

A species having carbon with sextet of electrons and can act as electrophile is called

'Adsorption' principle is used for which of the following purification method?

Given below are two statements: Statement I: IUPAC name of $$HO - CH_2 - (CH_2)_3 - CH_2 - COCH_3$$ is 7-hydroxyheptan-2-one. Statement II: 2-oxoheptan-7-ol is the correct IUPAC name for the above compound. In the light of the above statements, Choose the most appropriate answer from the options given below:

Match List I with List II: 

Choose the correct answer from the options given below:

The product (C) in the below mentioned reaction is: $$CH_3-CH_2-CH_2-Br \xrightarrow[\Delta]{KOH_{alc}} A \xrightarrow{HBr} B \xrightarrow[\Delta]{KOH_{aq}} C$$

Identify the mixture that shows positive deviations from Raoult's Law