KVV E-Modules

What are resins primarily secreted by in plants?

A: Xylem vessels B: Stomata C: Schizogenous or schizolysigenous glands D: Trichomes

Which of the following statements is TRUE about resins?

A: They are soluble in water and petroleum ether B: They form a film-like structure on evaporation C: They burn with a colorless flame D: They are crystalline

Resin acids are soluble in:

A: Water B: Alkali C: Petroleum ether D: None of the above

Which of the following is an example of a resin acid?

A: Peruresinotannol B: Commiphoric acid C: Glycine D: Asafoetida

Which resin class contains a sugar component?

A: Glycoresins B: Resenes C: Rosin D: Balsam

What test is positive for resin phenols due to their phenolic group?

A: Benedict’s test B: Matchstick test C: Ferric chloride test D: Molisch’s test

Which type of resin is chemically inert and never forms esters?

A: Balsam B: Oleoresin C: Resenes D: Glycoresin

Which of the following is a correct match for a resin type and its example?

A: Resin phenol – Jalap B: Resin ester – Benzoin C: Glycoresin – Asafoetida D: Resene – Peru balsam

Oleoresins are mixtures of:

A: Resin and gum B: Oil and Gum C: Essential oil and Resin D: Resin, gum, and water

Which of the following resins is classified as a balsam?

A: Asafoetida B: Benzoin C: Tolu balsam D: Ammoniacum