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In India, cluster bean (Guar) is traditionally used as a vegetable or animal feed, but recently the cultivation of this has assumed significance. Which one of the following statements is correct in this context

In India, cluster bean (Guar) is traditionally used as a vegetable or animal feed, but recently the cultivation of this has assumed significance. Which one of the following statements is correct in this context?

(a)

The oil extracted from seeds is used in the manufacture of biodegradable plastics.

(b)

The gum made from its seeds is used in the extraction of shale gas.

(c)

The leaf extract of this plant has the properties of antihistamines.

(d)

It is a source of high quality biodiesel.

Answer:

(b)

Non-traditional

Explanation

Option (a) is incorrect: Guar is not primarily linked with biodegradable plastics. Option (b) is correct: Guar seeds – guar gum (from the endosperm). Major use in the petroleum industry (hydraulic fracturing/fracking). Also used in food processing, textiles, and pharmaceuticals. Option (c) is incorrect: Guar leaves are not used in antihistamines. Option (d) is incorrect: It is not used in the production of high-quality biodiesel.