Question

In the production of which of these minerals does Rajasthan enjoy monopoly?
(a) zinc and copper (b) iron ore and mica
(c) wallstonite and jasper
(d) gold and silver

Answer 1

It's answer is zinc, Wollstonite and silver...

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Answer 2

In the production of zinc and copper, wollastonite and jasper minerals does Rajasthan enjoy a monopoly.

Explanation:

• Zinc–copper pair is an alloy of zinc and copper which is used in organic synthesis as a reagent. The pair may include differing amounts of copper and zinc; the zinc content usually exceeds 90%, although in some instances an alloy of similar proportions of zinc and copper is used.
• Wollastonite is a mineral calcium inosilicate, which may contain small quantities of calcium-substituted iron, magnesium, and manganese. It is generally white.
• This develops as impure calcareous or dolomite is exposed to elevated temperature and pressure, which sometimes happens in the presence of silica-bearing fluids such as skarns or metamorphic rock interaction.
• Jasper, an aggregation of microgranular quartz and/or chalcedony and other mineral types, is an invisible, impure silica type, typically in color red, yellow, brown or green; and occasionally in colour.

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