Q2 of 26 Page 1

Glass from ancient monuments appears milky. Why?

Glass is an amorphous solid and it is also called super cooled liquid. Liquids have tendency to flow, so over the years glass flows down under the influence of gravity and appears milky.


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1

Write the main reason for the stability of colloidal sols.

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Which of the following reactions is SN1 type?


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On heating Cu turnings with conc. HNO3, a brown colored gas is evolved which on cooling dimerises. Identify the gas.

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Write the IUPAC name of the given compound.