Give the balanced chemical equation for the laboratory preparation of hydrogen.
Zn + dil 2HCl ZnCl2 + H2 or Zn + dil H2SO4 ZnSO4 + H2
Identify the apparatus “A” and name the substance added through it.
thistle funnel and Dil HCl or Dil Sulphuric acid
Name the substance “C”.
Zinc Granules
State any one precaution to be take while collecting hydrogen gas.
Apparatus should be air tight or lower end of the thistle funnel must dip in acid
We cannot use dil HNO3 in the above process. State True or False
True
