Explanation

• If urea reacts with ammonia according to the Lowry and Bronsted theory, it acts as an acid to form a neutral compound.
• In the reaction between urea (H₂NCONH₂) and ammonia (NH₃), urea donates a proton (H⁺) to ammonia, turning it into the ammonium ion (NH₄⁺) and urea into its conjugate acid (HNCONH₂⁺).

Explanation

The rate at which nitrogen is used is 0.57 mol N2.L^-1.h^-1.

Explanation

Carboxylic acids with long hydrocarbon chains are called fatty acids.

Explanation

The catalyst in Friedel-Crafts alkylation is AlCl3 (aluminum chloride).

Explanation

In forming H2CO3 (carbonic acid), each oxygen atom utilizes sp2 hybrid orbitals.

Explanation

Pure water could be obtained from seawater by distillation.

Explanation

• The compound K2Cr2O7 (potassium dichromate) is not a transition metal complex.
• It contains chromium in the +6 oxidation state, but it does not form a coordination complex with ligands.
• Instead, it is a chromium compound in which chromium is in the form of a polyatomic ion

Explanation

The oxidation of glucose to gluconic acid is a reaction that involves the loss of two electrons:

C6H12O6 (glucose) → C6H12O7 (gluconic acid)

Explanation

Elements having zero nuclear spin cannot be directly determined by NMR (Nuclear Magnetic Resonance) spectroscopy because NMR relies on the detection of signals from nuclei with non-zero nuclear spin.

Explanation

The complexometric titration using EDTA (Ethylenediaminetetraacetic acid) as a titrant is not suitable for titrating Xe (xenon) since xenon does not form stable complexes with EDTA.