Advertisements
Advertisements
प्रश्न
Name the type of chemical reaction shown by the following equation:
Fe + CuSO4 → FeSO4 + Cu
Advertisements
उत्तर
Fe + CuSO4 → FeSO4 + Cu => Displacement reaction .
APPEARS IN
संबंधित प्रश्न
Define catalyst.
Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.
\[\ce{NH3_{(g)} + HCl_{(g)} -> NH4Cl_{(s)}}\]
Name three reducing agents ?
Fill in the blank
A change in which the substance can be brought back to its original state is called a _______ change.
Name the type of chemical reaction shown by the following equation:
NaOH + HCl → NaCl + H2O
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
The white particles of baking soda disappear when put in lemon juice. This means that it is a ______ change.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Potassium fluoride
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Hydrogen chloride
Give an example of a reaction where the following are involved
Catalyst
Define an electrochemical reaction.
What do you understand by precipitation reaction? Explain with examples.
What is a chemical change? Give two examples of chemical change?
Give an example of the following chemical changes.
A reaction where colour change is noticed.
State the original colour of the following substance and colour of residue obtained after heating.
Zinc carbonate
Distinguish by heating the following in dry test tubs.
Zinc carbonate, Copper carbonate and lead carbonate.
What kind of a change is associated with decaying of a plants?
The water we drink is a combination of hydrogen and oxygen.
Match the following:
| 1. | Sodium Chloride | a. | CaSO41/2H2O |
| 2. | Calcium sulphate dihydrate | b. | C2H5Oh |
| 3. | Magnesium sulphate hydrate | c. | CaSO4.2H2O |
| 4. | Calcium sulphate hemihydrate | d. | NaCl |
| 5. | Phenol | e. | MgSO4.H2O |
Analogy:
H2O: Water:: NaCl: ______.
Chemical changes are important in our day-to-day life. Give examples.
