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प्रश्न
_____ is the basic material to manufacture urea.
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उत्तर
Ammonia is the basic material to manufacture urea.
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संबंधित प्रश्न
The gas we use in the kitchen is called liquefied petroleum gas (LPG). In the cylinder, it exists as a liquid. When it comes out from the cylinder it becomes a gas (Change − A), then it burns (Change − B). The following statements pertain to these changes. Choose the correct one.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Miscible liquids having slightly different boiling points can be separated by the
- evaporation
- distillation
- fractional distillation
- sedimentation
Fill in the blank:
In some chemical reactions an insoluble ________ is formed when two solutions are mixed.
Write true or false.
A chemical equation gives only qualitative information of a chemical reaction.
Define a photochemical reaction.
What do you observe when Cl2 is passed through potassium iodide (KI) solution.
Complete the table given below.
| Addition of dil. H2SO4 to KHCO3 | Name of residue obtained |
Give a balanced equation for the conversion of an ammonium salt to a basic gas.
Explain the following statement: Digestion is a chemical change.
What is the use of indicator?
