alleryWhich of these completely disappears when stirred well in a glass of water?
AChalk powder
BRiver sand
CWood sawdust
DFine sugar
Answer & Solution
Correct answer: D. Fine sugar
1. Sugar, salt, chalk powder, sand and sawdust were each stirred in water.
2. Sugar and salt disappear because they dissolve in water.
3. Chalk powder, sand and sawdust stay visible and do not dissolve.
_Source: NCERT Curiosity Class 6 Science, Ch 6, 6.3.4_
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