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Q.

Powdered beryllium burns brilliantly on ignition in air to give :

(I) BeO           (II) Be3N             (III) Be(OH)2              (IV) BeO2

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An Intiative by Sri Chaitanya

a

(l) and (ll)

b

(lV) and (ll)

c

(l) and (llI)

d

Only (l)

answer is D.

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Detailed Solution

Be reacts with both O2 and N2 in air 

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Powdered beryllium burns brilliantly on ignition in air to give :(I) BeO           (II) Be3N2              (III) Be(OH)2              (IV) BeO2