On strong heating, sulphur burns in the air with blue flame and gives out:
SO2
SO3
none of the above
both A and B
A
SO2
B
none of the above
C
SO3
D
both A and B
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Solution
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Sulfur burns with a blue flame concomitant with the formation of sulfur dioxide notable for suffocating odor. The principal sulfur oxides are sulfur dioxide and sulfur trioxide.
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