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On heating, under suitable conditions, 1 litres of monoatomi...

On heating, under suitable conditions, 1 litres of monoatomic gas,X, combines with 1¹/₂ litres of an oxide, What is the formula of the oxide.

A.

XO₃

B.

X₂O₃

C.

X₃O₂

D.

XO₂

E.

None of the above

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Correct answer is B

No explanation has been provided for this answer.

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