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Assertion (A) : When a test tube containing sulphur (m.p. 387.5 K) at 455 K is inverted, nothing comes out. Reason(R) :Molten sulphur when come in contact with airburns instantly to give SO_2

Answer»

Both A and R TRUE and R is the correct explanation of A
Both A and R true and R is not acorrect explanation of A
A is true but R is false
A is false but R is true

Solution :REASON. At about 455 K, molten sulphur suddenly becomes so viscous that nothing pours out when the test tube is inverted.


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