Two colourless gases on mixing formed dense white fumes. These are :

1.	Two colourless gases on mixing formed dense white fumes. These are :
Answer» `NH_(3) " and " SO_(2)` `SO_(2)`and STEAM `NH_(3) " and " HCl` `NH_(3) " and " HNO_(2)` SOLUTION :`NH_(3)` and HCl COMBINE to form dense WHITE fumes of `NH_(4)Cl` `NH_(3) + HCl rarr underset(("White fumes"))(NH_(4)Cl)`

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