Advertisements
Advertisements
Question
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
Solution
Neutralization reaction and a precipitation reaction
- Neutralization reaction: “is a double decomposition reaction in which acid neutralizes a base and salt and water is formed.”
\[\ce{\underset{\text{Base}}{NaOH} + \underset{\text{acid}}{HCl}->\underset{\text{salt}}{NaCl} + \underset{\text{water}}{H2O}}\] - Precipitation reaction: “is a double decomposition reaction in which one product is ppt.”
\[\ce{\underset{\text{ferrous sulphate}}{FeSO4} + \underset{\text{sodium hydroxide}}{2NaOH}->Na2SO4 + \underset{\text{ppt. direct green}}{Fe[OH]2 v}}\]
APPEARS IN
RELATED QUESTIONS
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron and rust are the same substances.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer
Which of the following is a reducing agent?
- oxygen
- chlorine
- hydrogen
- none of these
TRUE \ FALSE
Ammonia is a good oxidizing agent.
What is a chemical reaction?
Give an example of a reaction where the following are involved:
Close contact
When hydrogen burns in oxygen, water is formed; when electricity is passed through water, hydrogen and oxygen are given out. Name the type of chemical change involved in the two cases.
Name: Gas with rotten egg smell.
What do you observe when dilute sulphuric acid is added to the following:
Sodium Sulphide
Select the correct answer for the following options:
The black residue obtained on heating copper carbonate.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A coloured substance which leaves a black residue and evolves two gases one of which is acidic and coloured and the other neutral and colourless.
______ is not a chemical change.
Discuss how acid rain occurs due to emission of smoke from vehicles and industries?
The changes in which new substance with new chemical properties are formed are ______.
Which of the following are chemical changes?
(i) Decaying of wood
(ii) Burning of wood
(iii) Sawing of wood
(iv) Hammering of a nail into a piece of wood
Which of the following statement is incorrect for a chemical reaction?
Beating an egg to make a cake is a ______.
Magnesium + oxygen → magnesium oxide.
2Mg + O2 → 2Mg O
Write the characteristics of chemical change.
When carbon dioxide is passed through lime water ______.
Write the effects of chemical reactions.
