Chlor-zinc iodide (Schultz solution) stains

Cellulose

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Solution

The correct option is A Cellulose
Schulzes solution (Chlor-zinc-iodide) stains cellulose.
Experiment- Dissolve by warming 20g of anhydrous zinc chloride in 8.5 ml of water and allow the mixture to cool. In a separate container, dissolve 1 g of potassium iodide and 0.5 g of iodine in 20 ml of water. Add this solution drop wise to the zinc chloride solution until iodine precipitate persists on agitation. Stains cellulose blue-violet, lignin yellow, cutin and suberin yellow or brown and starch blue.

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Similar questions

1) zinc carbonate= zinc oxide+ carbon dioxide

2) potassium bromide+ barium iodide = potassium iodide + barium bromide

Balance the equations

Q. In the reaction between zinc and iodine, zinc iodide is formed. What is being oxidized?

Q. When mercuric iodide is added to an aqueous solution of potassium iodide:

(a) Give one example of a chemical reaction.

(b) State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.

(c) Give two characteristics of the chemical reaction which occurs on adding potassium iodide solution to lead nitrate solution.

Write the balanced chemical equation for the following and identify the type of reaction in each case –
$(A) P o t a s s i u m b r o m i d e (a q) + B a r i u m i o d i d e (a q) \to P o t a s s i u m i o d i d e (a q) + B a r i u m b r o m i d e (s)$

$(B) Z i n c c a r b o n a t e (s) \to Z i n c o x i d e (s) + C a r b o n d i o x i d e (g)$

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