Q1. The major volatile oil present in clove is?

1. Eugenol
2. Glycol
3. Gerenoil
4. Caryophyllene

ANSWER: A. Eugenol

• Explanation: Eugenol is the major volatile oil present in cloves. The volatile oil extracted from the clove bud is mostly composed of eugenol (80-90%) and caryophyllene (4-8 percent). Clove oil is typically found in chewing gums, toothpastes, and mouthwashes due to its antibacterial properties. In dentistry, eugenol is used in conjunction with zinc oxide to fill cavities temporarily.

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Q2. The quality of dried spice of clove depends on?

1. Appearance
2. Size
3. Aromatic characteristics
4. All of the above

ANSWER: D. All of the above

• Explanation – The dried spice’s quality is determined by the look, size, content, and aromatic properties of its volatile oil. They should also be devoid of mould and mustiness. Whole dried cloves of a good bold size with a vivid, consistent, reddish-brown colour get the finest rates. The care is given in the harvesting, drying, washing, and sorting activities, as well as the storage conditions, impact the above characteristics to a large amount.

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Q3. The largest producer and exporter of turmeric is?

1. Sri Lanka
2. Pakistan
3. India
4. Malaysia

ANSWER: C. India

• Explanation: With an area of 180.96 lakh hectares and an annual yield of 7.92 lakh metric tonnes, India is the world’s largest producer and exporter of turmeric. Andhra Pradesh was the leading turmeric-growing state, accounting for 30% of total production, followed by Orissa, Tamilnadu, West Bengal, and Maharashtra.

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Q4. When curcumin comes in contact with alkali it turns?

1. Blue
2. Green
3. Yellow
4. Red

ANSWER: D. Red

• Explanation – Alkalinity, which turns yellow turmeric paper red or brown, can be used as a test for alkalinity. Curcumin has a harsh bitter taste and a musky odour. It becomes red when it comes into contact with alkali and is known as ‘Kum kum.’ Turmeric oil and oleoresin are also utilized in the culinary and perfume industries to give flavour. Turmeric essential oil has antibacterial properties.

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Q5. Part of commerce in clove is?

1. Leaves
2. Unopened flower buds
3. Fruit
4. Aromatic bark

ANSWER – B. Unopened flower buds

• Explanation: One of India’s most significant tree spice crops is clove. The clove of trade is a fully developed but unopened scented dried flower bud of the evergreen tree syzygium aromaticum. Clove is a spice that is used to flavor curries, gravies, ketchup, and spice blends. The poorer culls are used to make clove oil, which is used as a flavoring agent in a variety of foods and soap making, perfumery, and the synthetic manufacture of vanillin.