Advertisements
Advertisements
प्रश्न
Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
The conversion of ferrous sulphate to ferric sulphate is ______ reaction.
Advertisements
उत्तर
The conversion of ferrous sulphate to ferric sulphate is an oxidation reaction.
Explanation:
Oxidation means losing one or more electrons. During this conversion, Fe2+ is converted into Fe3+ by losing one electron. Therefore, it is an oxidation reaction.
APPEARS IN
संबंधित प्रश्न
How do the following help in bringing about a chemical change?
catalyst .
How do the following help in bringing about a chemical change?
heat.
Complete and balance the following chemical equations:
`"H"_2"S"` + `"CI"_2` `→`
Fill in the blanK
A .............is a substance which changes the rate of a chemical reaction without undergoing a chemical change.
FILL IN THE BLANK
........... electrolytes dissociate completely in aqueous state and allow large amount of electricity to flow through it.
Fill in the blank:
The substances which undergo chemical change are called _______
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)
Rusting of iron is a ______ chemical change.
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.
Give an example of a reaction where the following are involved
Heat
Define a photochemical reaction.
Name the following:
The type of change physical or chemical involved – ‘during respiration in human beings’.
State the following reaction represent oxidation or reduction.
\[\ce{Al->Al+++}\]
Select the correct answer from the options given below:
State the gaseous product formed, when
An active metal reacts with dilute sulphuric acid.
NPK are the primary nutrients for plants.
Silver metal can displace hydrogen gas from nitric acid.
Chemical change is a temporary change.
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 |
Which is used as a catalyst during the process of hydrogenation of oils?
Write the characteristics of chemical change.
Photosynthesis is a chemical charge. Justify your answer.
