Welcome to Chem Zipper.com......: What is the structure of "Purine" ?

Welcome to Chem Zipper.com......: What is the structure of "Purine" ?

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Tuesday, December 8, 2020

What is the structure of "Purine" ?

Kumar Sir Chem Zipper Team at Tuesday, December 08, 2020

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An air bubble starts rising from the bottom of lake, it diameter is 3.6 mm at bottom and 4 mm at the surface. The depth of lake is 250 cm and temperature at surface is 40℃ . What is the temperature at the bottom of lake? (Given atmospheric pressure = 76 cm of Hg and g= 980 cm sec-1 neglect surface tension effect).

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STRUCTURE OF DIAMOND :

STRUCTURE OF DIAMOND :

DIAMOND :

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Dancing resonance

Dancing resonance

Sigma Resonance

BRIDGE BONDING

BRIDGE BONDING

MULTI-CENTERED BOND

STRUCTURE OF GRAPHITE:

STRUCTURE OF GRAPHITE:

GRAPHITE

STRUCTURE OF FULLERENCES :

STRUCTURE OF FULLERENCES :

FULLERENCES :

CLOSE PACKING:

CLOSE PACKING:

THE SOLID STATE

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