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TNPSC GROUP II- A X

Light of Asia

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NH 47 A ) NH 7 NH 7 A NH 47

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A B B C CA

B

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P Q

P

AB BC

158.A B C D E

C AC BE C D?

B C D E

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A R

A R A R ARA R

NH+4 + OH- N2 + H2O NO2 + H2O N2 + H2

Cr0 Cr3+ Cr2+ Cr6+

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HCL

HCOOH CH3COOH C3H7COOH C2H5COOH

186.B = 2 BALL = 27BOOK

A -

H P B M

2.48x 2.48 – 1.52 x 1.52 0.96

½

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Rough work