Elements and Compounds — CHEMISTRY STD 7 — Question
ICSE BoardEnglish MediumSTD 7CHEMISTRYElements and Compounds2 Marks
Question
What is meant by the term ‘variable valency’?
✓
Answer
Variable valency of an element means that those elements have more than one valency. Example,Copper has two valencies – 1 and 2 written as copper (I) copper (II).
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.