Per NCERT, why is concentration EXPRESSED CAREFULLY for ORS, pesticides, and saline drips?
AConcentration is irrelevant — any amount works
BConcentration only matters in laboratories, not real life
COnly the colour of the solution matters
DToo little may be ineffective; too much can be toxic or damaging — the right proportion is essential
Answer & Solution
Correct answer: D. Too little may be ineffective; too much can be toxic or damaging — the right proportion is essential
Per NCERT, the chapter stresses that the right proportion is essential for medicines, agriculture, food (concentration matters). The other options miss the chapter's point.
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