Advertisements
Advertisements
प्रश्न
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Advertisements
उत्तर
2Na + 2H2O → 2NaOH + H2
APPEARS IN
संबंधित प्रश्न
Multiple Choice Question
The metal which reacts with cold water to produce hydrogen is
MULTIPLE CHOICE QUESTIONS
Hydrogen burns in oxygen to form
- hydrogen sulphide
- nitrates
- water
- ammonia
FILL IN THE BLANK
........................... means ‘maker of water’ in Greek.
For laboratory preparation of hydrogen, give the following:
materials used
Where does hydrogen occur in a free state?
How did the name 'hydrogen' originate?
Complete and balance the following reaction.
Ca + H2O →_____________ +___________
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
Account for the following fact:
Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilutes sulphuric acid.
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
