Q.

The number of Glucose molecules present in 10 ml of decimolar solution is

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a

6.0×1019

b

6.0×1020

c

6.0×1021

d

6.0×1022

answer is A.

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Detailed Solution

Given:

  • Molarity = 0.1 M
  • Volume (\( V \)) = 10 ml = 0.01 litre

Step 1: Calculate Number of Moles

Number of moles = Molarity × Volume (in liters)

= 0.1 × 0.01

= 10-3 moles

Step 2: Calculate Number of Molecules

Number of Molecules = Moles × Avogadro number (\( N_A \))

= 10-3 × 6.0 × 1023

= 6.0 × 1020 molecules

Final Answer

So, the correct option is AA.

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