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STD 8 Hydrogen game by SREEJI SREENIVASAN
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The process by which hydrogen gas is collected
Downward displacement of water
Name the industrial method of production of Hydrogen gas
BOSCH process
We cannot use dil HNO3 in the above process. State True or False
True
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
Name the substance “C”.
Zinc Granules
Identify the apparatus “A” and name the substance added through it.
thistle funnel and Dil HCl or Dil Sulphuric acid
Give the balanced chemical equation for the laboratory preparation of hydrogen.
Zn + dil 2HCl  ZnCl2 + H2 or Zn + dil H2SO4  ZnSO4 + H2
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