Question

a) Do you observe anything happening around the zinc granules? b) Why is glass tube not dipped in dil. HCl? c) Is the gas heavier or lighter than air? d) Is the gas soluble or insoluble in water? e) What will be the range of pH of the product formed? f) What will be the product formed if zinc is replaced by copper?

Answer 1

Answer:

1.Zinc contains copper as a impurity which act as a catalyst to improve rate of reaction

2.because hydrogen is lighter than air so it will be present above

3.Hydrogen is lighter than air

4.insoluble

5.