Advertisements
Advertisements
प्रश्न
Distinguish by heating the following in dry test tubs.
Ammonium Chloride and iodine.
Advertisements
उत्तर
| Ammonium Chloride | Iodine | |
| Residue left | No residue | No residue |
| Colour of residue | The colour of the residue is white sublimate. | The colour of the residue is Violet sublimate. |
| Gas produced | Hydrogen chloride and ammonia gas are produced.(HCl + NH3) | Iodine vapours are produced. |
APPEARS IN
संबंधित प्रश्न
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Reduction is a chemical reaction in which there is
- removal of hydrogen
- removal of oxygen
- addition of oxygen
- none of these
Write true or false :
No new substance is formed during a chemical reaction.
What is a chemical change? Give two examples of chemical change?
Give a word equation for the following reaction.
A salt which reacts with ammonium hydroxide to give a reddish brown precipitate.
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Copper nitrate.
A reaction between an acid and a base is called ______.
Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.
Arrange the following statements in correct sequence:
- One side is water-loving and other water-hating molecules.
- When you agitate the cloth, the dirt is surrounded by many molecules and taken away from the cloth.
- The dirt surrounded by the detergent molecules floats in the water making it dirty.
- Finally, the cloth is clean.
- The detergent molecules have two sides.
- Water hating goes and joins with dirt and oil in the cloth while the water-loving joins with the water molecules.
Which is used as a catalyst during the process of hydrogenation of oils?
Both CO2 and H2 gases are ______.
