Read before you solve · 2 min
Read Metal-salt displacement
This SOF ISO pattern tests identify incorrect statement. Read the condition carefully, then use the method below before you solve.
ISO · Metals and Non-metals · 1 linked question · 100% coverage
Know this first
Motion and force questions become simpler when direction, starting condition, time and the acting forces are marked first.
Distance · Length of the path travelledDisplacement · Straight-line change in positionResultant force · Net force including direction
Study deeper: Class 9 Science · Metals and Non-metals
Find the tested idea
Identify the material, change or observable property first; this decides the scientific rule to use.
Work from the evidence
Use the experiment or stated observation as evidence. Compare each option with the property, particle model or reaction condition in the stem.
Verify before choosing
Use the wording, diagram and units exactly as given. Select an option only after it satisfies every stated condition.
OlympIQ exam lens
- ✓State the observed property.
- ✓Select the governing idea.
- ✓Test every claim against the evidence.
OlympIQ trap
Keep physical changes, chemical changes and everyday appearances separate.
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