Q. 35.0( 1 Vote )
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a) During the preparation of chlorine gas water are released so, sulphuric acid acts as an dehydrating agent which makes the moist chlorine gas dry.
b) Charring is the process in which the substance burns leaving behind the black spot. When the concentrated sulphuric acid falls on the wood it reacts with it till the colour of the wood turns black. This is called charring of wood.
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