Exams › JEE Main › Chemistry

Given below are two statements: Statement I: The number of species among SF4, NH4+, [NiCl4]2−, XeF4, [PtCl4]2−, SeF4 and [Ni(CN)4]2−, that have tetrahedral geometry is 3. Statement II: In the set [NO2, BeH2, BF3, AlCl3], all the molecules have incomplete octet around central atom. In the light of the above statements, choose the correct answer from the options given below:

1. (1) Statement I is true but Statement II is false
2. (2) Both Statement I and Statement II are false
3. (3) Statement I is false but Statement II is true
4. (4) Both Statement I and Statement II are true

Correct answer: (3) Statement I is false but Statement II is true

Solution

Statement I is false because only two of the given species, SF4 and SeF4, have tetrahedral geometry, while the others do not. Statement II is true as all the listed molecules have central atoms with incomplete octets, which is characteristic of their bonding.

Related JEE Main Chemistry questions

• Although the electronegativity gap between N and F is larger than that between N and H, ammonia has a dipole moment of 1.5 D while nitrogen trifluoride has only 0.2 D. The reason is that
• When N₂ is converted into N₂⁺, the dissociation energy of the N–N bond ______, and when O₂ is converted into O₂⁺, the dissociation energy of the O–O bond ______.
• Using molecular orbital theory, which sequence arranges the nitrogen species in order of increasing bond order?
• From the ions listed below, which pair has geometries that can be accounted for by the same type of orbital hybridization? NO₂⁻, NO₃⁻, NH₂⁻, NH₄⁺, SCN⁻
• Atoms A and B have electronegativities of 1.20 and 4.0, respectively. What is the percentage ionic character of the A–B bond?
• In the phosphate ion, \(\mathrm{PO_4^{3-}}\), what is the formal charge on an oxygen atom that is singly bonded to phosphorus?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →