

MCQOPTIONS
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1. |
A student heated some sulphur in a spatula and collected the gas 'X'. Which one among the following is correct about 'X'? |
A. | X is SO2 and it turns moist litmus to blue |
B. | X is SO3 and it turns moist litmus to red |
C. | X is SO2 and it turns moist litmus to red |
D. | X is SO3 and it turns dry litmus to blue |
Answer» D. X is SO3 and it turns dry litmus to blue | |