Chemistry · 2016
JEE Main · 10 April 2016, Shift 1 · Q40
Gold numbers of some colloids are: Gelatin: 0.005-0.01, Gum Arabic: 0.15-0.25; Oleate: 0.04-1.0; Starch: 15-25. Which among these is a better…
Gold numbers of some colloids are : Gelatin : $\displaystyle 0.005$-$\displaystyle 0.01$, Gum Arabic : $\displaystyle 0.15$-$\displaystyle 0.25$; Oleate : $\displaystyle 0.04$-$\displaystyle 1.0$; Starch : $\displaystyle 15$-25. Which among these is a better protective colloid ?
Official answer
(1)
Gelatin
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JEE Main 2016 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.