Molisch’s Test Quiz

Molisch's Test is a general test for carbohydrates, detecting the presence of sugars through the formation of furfural and its derivatives when acted upon by strong mineral acids.

The purple color observed in Molisch's Test is due to the condensation of furfural and its derivatives with two molecules of phenol, typically α-naphthol.

Concentrated sugar solutions may give dark brown to red solutions with H2SO4 due to the charring action of the acid and the formation of resinous products.

<p>The purpose is to identify the presence of different types of carbohydrates based on their reactions with specific reagents.</p> Signup and view all the answers

<p>Molisch reagent is used, and it helps in detecting the presence of carbohydrates by forming a purple ring at the junction of the reagent and the test solution.</p> Signup and view all the answers

<p>Benedict's Test is based on the reduction of cupric ions by reducing sugars, leading to the formation of a red precipitate.</p> Signup and view all the answers

<p>Non-reducing sugars, such as sucrose, can be distinguished by performing additional tests like Barfoed's Test, which specifically detects reducing sugars.</p> Signup and view all the answers

<p>Lugol's Iodine is used to test for the presence of starch, as it forms a blue-black color complex with starch molecules.</p> Signup and view all the answers