sample of an ore is heated in a test tube in the beginning a gas is evolved which translator blue Litmus to Red on further heating a gas is evolved which makes a glowing splinter burn brilliantly assigning race metal appears in the test tube study the data and answer the following question first one what are the two gases produced second one what is the possible name of the old third one which is the metal produced in the test tube
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Sulphur dioxide and sulphur trioxide and metal is mercury
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