Q.Write one point that differentiates nuclear reactions from chemical reactions.

Step 1. This chapter's own comparison table (Table 13.3) lists several differentiating points between chemical and nuclear reactions; any one of them is a valid answer, but the most fundamental is elemental identity.

Step 2. In a chemical reaction, atoms are rearranged by breaking and forming chemical bonds -- the atoms themselves, and hence the elements present, never change; only how they are bonded together changes.

Step 3. In a nuclear reaction, the nucleus itself is altered -- protons and/or neutrons are gained, lost, or converted -- so one element can genuinely be transformed into a completely different element (e.g. 27-13-Al transmuting into 30-15-P, aluminium into phosphorus). …

Draw on the chapter's own chemical-vs-nuclear comparison table and state one cl …

• Giving a vague answer like 'nuclear reactions are more powerful' without specifying a concrete, checkable point of difference. …