JEE Main 2022 · 25 Jul · Shift 2 · Chemistry Q89

← JEE Main 2022 · 25 Jul · Shift 2

ChemistryInteger+4 / -1Question 89 of 90

The separation of two coloured substances was done by paper chromatography. The distances travelled by solvent front, substance A and substance B from the base line are 3.25 cm, 2.08 cm and 1.05 cm, respectively. The ratio of $R_f$ values of A to B is ______.

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Answer and worked solution

Official answer: 2

R_f $\frac{2.08}{3.25}=0.64$ and $\frac{1.05}{3.25}=0.32$ : ratio about 2.

Answer: 2

Topics:Purification and characterisation

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JEE Main 2022 · 25 Jul · Shift 2, Chemistry question 89