NEET 2024 | NEET Year Wise Previous Years Questions

MCQ (Single Correct Answer)

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

Choose the correct answer from the options given below:

$$ \mathrm{Li}<\mathrm{Be}<\mathrm{B}<\mathrm{C}<\mathrm{N} $$

$$ \mathrm{Li}<\mathrm{B}<\mathrm{Be}<\mathrm{C}<\mathrm{N} $$

$$ \mathrm{Li}<\mathrm{Be}<\mathrm{C}<\mathrm{B}<\mathrm{N} $$

$$ \mathrm{Li}<\mathrm{Be}<\mathrm{N}<\mathrm{B}<\mathrm{C} $$

MCQ (Single Correct Answer)

The most stable carbocation among the following is :

MCQ (Single Correct Answer)

Activation energy of any chemical reaction can be calculated if one knows the value of

rate constant at standard temperature

probability of collision

orientation of reactant molecules during collision

rate constant at two different temperatures

MCQ (Single Correct Answer)

Given below are two statements:

Statement I : Aniline does not undergo Friedel-Crafts alkylation reaction.

Statement II : Aniline cannot be prepared through Gabriel synthesis.

In the light of the above statements, choose the correct answer from the options given below:

Both statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is correct but Statement II is false

Statement I is incorrect but Statement II is true