A student took sulphur powder on a spatula and heated it. Then he collected the gas evolved by inverting a test tube over it as shown in the figure. Write a balanced chemical equation for the reaction taking place. What will be the action of this gas on : (i) dry litmus paper and (ii) moist litmus paper. (b) What is thermit reaction ? Mention its application.
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No reaction. On dry litmus
Reaction on wet litmus
Thermite reaction is a pyrotechnic composition of metal and its oxides
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