JEE Main 2024 (Online) 30th January Morning Shift | Chemical Bonding & Molecular Structure Question 83 | Chemistry

Assertion (A) : There is a considerable increase in covalent radius from $$\mathrm{N}$$ to $$\mathrm{P}$$. However from As to Bi only a small increase in covalent radius is observed.

Reason (R) : Covalent and ionic radii in a particular oxidation state increases down the group. In the light of the above statements, choose the most appropriate answer from the options given below:

(A) is false but (R) is true

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

(A) is true but (R) is false

JEE Main 2024 (Online) 29th January Morning Shift

MCQ (Single Correct Answer)

-1

The difference in energy between the actual structure and the lowest energy resonance structure for the given compound is

electromeric energy

resonance energy

ionization energy

hyperconjugation energy

JEE Main 2024 (Online) 27th January Morning Shift

MCQ (Single Correct Answer)

-1

Choose the polar molecule from the following:

$$\mathrm{CCl}_4$$

$$\mathrm{CO}_2$$

$$\mathrm{CH}_2=\mathrm{CH}_2$$

$$\mathrm{CHCl}_3$$

JEE Main 2023 (Online) 15th April Morning Shift

MCQ (Single Correct Answer)

-1

The number of $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bonds in $\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7},\left(\mathrm{HPO}_{3}\right)_{3}$ and $\mathrm{P}_{4} \mathrm{O}_{10}$ are respectively :

$1,3,6$

$1,2,4$

$0,3,4$

$0,3,6$

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