Explanation:
1. Statement (I): Incorrect. - The oxidation state of an element is not determined based on electron gain enthalpy. Instead, it is based on the number of electrons lost, gained, or shared during bond formation.
2. Statement (II): Correct. - \( p\pi-p\pi \) bond formation is more common in second-period elements (e.g., \( C, N, O \)) due to their small size and effective overlap of \( p \)-orbitals, which diminishes in larger elements from lower periods.
Final Answer is Option (4).
What is the empirical formula of a compound containing 40% sulfur and 60% oxygen by mass?
Given below are two statements :
Statement I : Wet cotton clothes made of cellulose based carbohydrate takes comparatively longer time to get dried than wet nylon polymer based clothes.
Statement II : Intermolecular hydrogen bonding with water molecule is more in nylon-based clothes than in the case of cotton clothes.
In the light of the above statements, choose the Correct answer from the options given below
Match the LIST-I with LIST-II
LIST-I | LIST-II |
---|---|
A. PF5 | I. dsp2 |
B. SF6 | II. sp3d |
C. Ni(CO)4 | III. sp3d2 |
D. [PtCl4]2- | IV. sp3 |
Choose the correct answer from the options given below:
Match List-I with List-II: List-I