ICSE Class 9 Chemistry Preparation of Hydrogen
- what do u mean by vegurosluly
- state some sources of hydrogen
- Why hydrogen is not collected by downward displacment of air??
- plz. ans. this
- We not prefer Iron for the preparation of hydrogen gas because impurities are present but zinc also contains impurities than why do we prefer that element?
- Why do we collect the hydrogen gas by downward displacement of water? Why not by air?
- which of the following reaction can give hydrogen gas. (1)Zn + conc.H2SO4 (2)Cu + dil. H2SO4 (3)Mn + very dilute HNO3 (4)pb + dil HNO3 Plzzzz explain all options....Thanks!!
- Hydrogen can be prepared with the metal zinc by using a.acid b.alkali c.water
- HOW CAN YOU OBTAIN HYDROGEN FROM NAOH (EXCEPT ELECTROLYSIS)?
- Why lead is not used in the preparation of hydrogen
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