- The electron gain enthalpy of fluorine (\( \text{F} \)) is more negative than that of chlorine (\( \text{Cl} \)), so statement A is correct.
- Ionization enthalpy does decrease as we move down a group in the periodic table, so statement B is correct.
- Electronegativity of an atom is a property of the atom itself and does not depend on the atoms bonded to it, so statement C is incorrect.
- Al$_2$O$_3$ is amphoteric, but NO is a neutral oxide, not amphoteric, so statement D is also incorrect.
Thus, the incorrect statements are C and D.
Choose the correct option
Molecule | Shape | ||
---|---|---|---|
A | \(BrF_5\) | i | T-shape |
B | \(H_2O\) | ii | See-saw |
C | \(ClF_3\) | iii | Bent |
D | \(SF_4\) | iv | Square Pyramidal |
20 mL of sodium iodide solution gave 4.74 g silver iodide when treated with excess of silver nitrate solution. The molarity of the sodium iodide solution is _____ M. (Nearest Integer value) (Given : Na = 23, I = 127, Ag = 108, N = 14, O = 16 g mol$^{-1}$)