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प्रश्न
Name a gas which burns in air or oxygen forming water.
उत्तर
The gas that burns in oxygen to form water is hydrogen.
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संबंधित प्रश्न
Indicate which of the following statement is true and which is false:
Hydrogen is combustible as well as a supporter of combustion.
Complete and balance the following equation:
H2+____________→ 2HCI
Give reason for the following:
A pop sound produced when hydrogen is burnt?
FILL IN THE BLANK
In nature, hydrogen occurs as a .................. molecule represented as H2
FILL IN THE BLANK
Hydrogen is present abundantly in the ................
Why is hydrogen called a reducing agent? Give chemical equation to support your answer ?
Write the balanced equation and give your observation when the following metal reacts:
Sodium with cold water
Write the balanced equation and give your observation when the following metal reacts:
Magnesium with boiling water
Using a burning candle and a jar of hydrogen – how would you prove experimentally that Hydrogen is a combustible gas.
Give a test to differentiate between two gas jars – one containing pure hydrogen and the other hydrogen-air mixture.
Give balanced equation for the following conversion:
Nitrogen to a basic gas – using hydrogen.
Match the statements in List I with the appropriate answer in List II.
| List I | List II |
| 1. An atom of hydrogen | A: Chromic oxide |
| 2. A strong oxidising agent | B: Ammonia |
| 3. A promoter used in Bosch process | C: Iron |
| 4. A chemical used in the manufavture of fertilizers | D: One electron |
| 5. The catalyst used in production of a basic gas from nitrogen. | E: Dilute nitric acid |
Write correctly balanced equation for the following:
When steam is passed over red hot iron.
Explain the following:
Two jars of H2 are collected – “one burns quietly and the other does not”.
Give balanced equation for obtaining hydrogen from cold water using a monovalent active metal.
Give a reason for the following.
A mixture of hydrogen and chlorine can be separated by passage through a porous pot.
