Per NCERT, a SALINE drip used in hospitals is typically what concentration of sodium chloride in water?
A90% m/v
B0.9% m/v (0.9 g salt per 100 mL solution — isotonic with blood)
C9% m/v
DPure salt with no water
Answer & Solution
Correct answer: B. 0.9% m/v (0.9 g salt per 100 mL solution — isotonic with blood)
Hospital saline is 0.9% m/v NaCl — chosen because it matches the osmotic concentration of blood (per NCERT Threads of Curiosity, Fig 5.5).
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