Advertisements
Advertisements
प्रश्न
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
Advertisements
उत्तर
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
संबंधित प्रश्न
State four conditions necessary for a chemical reaction to take place.
Write your observation and a balanced equation in the case of the following substances being heated.
Zinc carbonate.
Give examples of exothermic reactions i.e. heat evolved in each of the following:
(a) reaction between a solid and a liquid
(b) reaction between two gases
Give two examples of exothermic reactions seen in everyday life.
Give a word equation for the following reaction.
Two gases which combine to give a solid.
Explain the Silver nitrate solution is kept in coloured reagent bottles in the laboratory.
State the following reaction represent oxidation or reduction.
\[\ce{Fe++->Fe+++}\]
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Copper nitrate.
Chemical change is a temporary change.
Give two examples for the following case:
Chemical changes
Photosynthesis is a chemical charge. Justify your answer.
