Which reaction does NOT belong to Lassaigne’s test?

If the rate constant is 0.03 s⁻¹, time for concentration change 7.2 → 0.9 mol L⁻¹ is:

Higher yield of NO in N₂ + O₂ ⇌ 2NO (ΔH = +180.7 kJ/mol) A. Higher temperature B. Lower temperature

Identify the correct orders: A. H₂O > NH₃ > CHCl₃ (dipole moment) B. XeF₄ > XeO₃ > XeF₂ (lone pairs)

The standard heat of formation, in kcal/mol of Ba²⁺ is:

Given below are two statements: Assertion (A): Alkyl iodide undergoes SN2 reaction faster than alkyl