Question

Hold one moist and one dry strip of blue litmus paper over dry ICL acid gas which strip turn red and why

Answer 1

Answer:

Moist strip of blue litmus paper

Explanation:

Because due to the presence of H+ ions of H2O in the moist strip, on passing dry HCL gas over it, it's H+ ions will dissociate from H2O and hence, the colour of the strip will change from blue to red due to acidic influence of HCL..

Answer 2

Moist slip of blue litmus paper will turn red because HCL forms H+ ions in presence of moisture and hence shows its acidic character...!!

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