Advertisements
Advertisements
Question
Give a word equation for the following reaction.
Two solids which combine on heating, to give a liquid.
Advertisements
Solution
Carbon + Sulphur → Carbon disulphide
C + S → CS2 (l)
APPEARS IN
RELATED QUESTIONS
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Condensation of steam is not a chemical change.
How would you show that setting of curd is a chemical change?
How do the following help in bringing about a chemical change?
pressure.
Define catalyst.
Complete and balance the following chemical equations
Na + H2 O →
Fill in the blank:
The substances formed as a result of a chemical reaction are called _______
Write true or false .
A black residue is formed when sugar is heated .
A chemical equation is a statement that describes a chemical change in terms of
Write the chemical reaction where the following changes are observed.
Precipitate is formed
Give an example of the following chemical changes.
A reaction where colour change is noticed.
Give one example electrochemical reaction.
Complete the table given below.
| Heat on copper carbonate | Test for gas evolved |
NPK are the primary nutrients for plants.
When lithium metal is placed in hydrochloric acid, _______ gas is evolved.
Silver articles turning black: ______:: Boiling of H2O: physical change ______.
______ is a natural indicator.
Which of the following is a chemical change?
______ occurs in the absence of air and in the presence of micro-organisms such as yeast.
Assertion (A): Cutting paper into very small pieces is an irreversible change.
Reason (R): Physical changes are always reversible.
