Advertisements
Advertisements
प्रश्न
Burning of paper is a ______ change.
विकल्प
physical
chemical
physical and chemical
neutral
Advertisements
उत्तर
Burning of paper is a chemical change.
APPEARS IN
संबंधित प्रश्न
How do the following help in bringing about a chemical change?
catalyst .
Define catalyst.
Complete and balance the following chemical equations:
Zn + `"H"_2"SO"_4` `→`
(dil)
Fill in the blanK
A .............is a substance which changes the rate of a chemical reaction without undergoing a chemical change.
Explain the following reaction with one suitable example of Combination reactions .
Give reason for the following:
Molybdenum is used in the manufacture of ammonia.
Complete the table given below.
| Heat on iodine crystals | Colour of vapours evolved |
Complete the table given below.
| Flame test for calcium chloride | Acid used for flame test |
Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.
Chemists identify gypsum as a natural indicator.
