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What was the primary commodity traded along the Silk Road?

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Important Questions on Alcohols, Phenols and Ethers

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Write the names of the following:

A 2 mya primate that lived in East African grasslands.

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The brain capacities of which man were between 650-800 cc in course of human evolution?
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How many metameric ethers are represented by the molecular formula C4H10O?
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Write the names of the following :

A 15 mya primate that was ape-like.

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The order and the degree of the differential equation d3ydx316-dydx13=0 are respectively
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Find the order and the degree of the differential equation: x2d2ydx2=1+dydx24.
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Picric acid is a yellow coloured compound. Its chemical name is: