Natural Products and their Uses

This set of MCQs helps students to learn about natural products and their uses which include a large and diverse group of substances from various natural sources such as plants, bacteria, fungi, insects, arachnids, marine organisms, and higher-order animals. The term “natural products” also refers to complex mixtures from these products and the isolated compounds derived from them. In addition, this NCCIH definition also includes vitamins, minerals, probiotics—i.e., live microorganisms, bacteria in most cases, that are intended to have health benefits—and special diets for medical conditions or health outcomes.

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Which of the following is not edible oil?

Groundnut oil Coconut oil Cottonseed oil Spearmint oil

Which fatty acid has high reactivity towards oxygen?

Stearic acid Linoleic acid Oleic acid Linolenic acid

Which of the following is not an activated nickel catalyst preparation reaction?

Ni(OH)2 + H2 → Ni+H2O Ni(CO)4 → Ni + 4CO 2Al·Ni + 6NaOH → Ni + 2NaAlO3 + 3H2 NiCO3 + H2 → Ni+H2O + CO2

Which solvent is used for the purification of oils?

Acetone Ethanol Propane Butyl alcohol

Which catalyst is used in the hydrogenation of oils?

Activated platinum Activated rhodium Activated palladium Activated nickel

Which distillation technique is used to remove sulfur containing compounds from the synthesis gas processes?

Cryogenic distillation Steam distillation Azeotropic distillation Industrial distillation

What type of agitators is used in batch operation of hydrogenation of oils?

Anchor agitators Propeller agitators Turbine agitators Helical agitators

Which of the following statement is wrong?

Coconut oil is used for cooking Linseed is mostly used in manufacture of paints and varnishes Oil cakes are used as animal nutrition Castor seed is used as cattle feed

What is the purpose of adding cleansing agent?

Increase wet ability and decrease surface tension Decrease wet ability and increase surface tension Decrease wet ability Increase surface tension

Why a Flash tank is used in soap manufacturing unit?

To remove impurities To add alkali To add excess steam To remove excess steam

Where does saponification takes place in continuous process?

Hydrolysis tower Blender Vacuum still Mixer

Which of the following indicates continuous process for soaps?

Hydrolysis tower, mixer, blender, vacuum still Vacuum still, hydrolysis tower, mixer and blender Hydrolysis tower, blender, mixer, vacuum still Hydrolysis tower, vacuum still, mixer, blender

Which one of the following additive converts yellow glycerin into sweet water?

Potash Detergent builders Activated charcoal Caustic soda

Temperature maintained in batch hydrogenators is _______.

Above 200°C

Below 200°C

120-160°C

180°C

Quiz/Test Summary

Title: Natural Products and their Uses

Questions: 14

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