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प्रश्न
Give a chemical test to distinguish between the following gases:
Ammonia and hydrogen chloride
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उत्तर
Ammonia [NH3]: Bring a glass rod dipped in cone. HCl gives dense white fumes. Turns nessler’s reagent from colourless to pale-brown.
Hydrogen chloride [HCl]: Bring a glass rod dipped in cone. HCl, no white fumes. No-action with nessler’s reagent.
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संबंधित प्रश्न
Complete and balance the following equation:
H2+____________→ 2HCI
Multiple Choice Question
Hydrogen is responsible for producing
FILL IN THE BLANK
Ammonia is used to make ................
Write the balanced equation and give your observation when the following metal reacts:
Sodium with cold water
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With reference to the equation : Cl2 + H2S → 2HCl + S pertaining to a redox reaction – select the correct answer.
Chlorine is ______ to HCl.
Give balanced equation for the following conversion:
Iron [III] oxide to iron – using hydrogen.
Give reason for the following:
The reaction of chlorine with hydrogen sulphide is deemed a redox reaction.
Select the correct options for the following statement:
The gas which has now replaced hydrogen in air balloons is ___.
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 |
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How can you obtain hydrogen from sodium hydroxide [not by electrolysis].
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When steam is passed over red hot iron.
Write correctly the balanced equation for the following:
‘When zinc filings are added to a concentrated solution of sodium hydroxide’.
Describe one chemical test applied to the following gases, which would enable you to distinguish between them :‘carbon monoxide and hydrogen’.
What do the following symbols represent : 2H and H2.
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen has one valence electron.
