Precipitation Reaction

Q.

Differenciate between coprecipitation and post precipitation.

Q. The reaction between silver nitrate and sodium chloride is an example of a ______ reaction.

1. decomposition

2. precipitation

3. displacement

4. combination

Q.

Barium chloride on reacting with ammonium sulfate forms barium sulfate and ammonium chloride. Which of the following correctly represents the type of the reaction involved?

1. Decomposition reaction

2. Double displacement reaction

3. Combination reaction

4. Precipitation reaction

Q.

Precipitation reactions produce _______ salts.

Q. A few drops of silver nitrate solution are added to a solution of a salt. If a pale yellow precipitate forms, which ion from the salt is most likely to be in the solution?

1. Iodide ion
2. Chloride ion
3. Bromide ion
4. Sulphate ion

Q. A blue solid ‘X’ was dissolved in water and the solution was divided into two portions. When a few drops of sodium hydroxide were added to the 1st portion, a blue gelatinous precipitate was formed.
When a few drops of dilute nitric acid, followed by a few drops of barium nitrate solution were added to the $2^{nd}$ portion, a white precipitate was formed. From these observations deduce the identity of substance.

1. 
2. 
3. 
4. 

Q. The conversion of ${\text{CaCO}}_3$ into $\text{CaO}$ and ${\text{CO}}_2$ is an example of ____________ reaction.

1. decomposition
2. combination
3. double displacement
4. displacement

Q.

The precipitate formed in a precipitation reaction is a/an ____________________ compound.

Q. During precipitate reactions, an insoluble compound is formed after the reaction. The compound is called:

1. precipitate
2. solvent
3. solute
4. insolvent

Q.

An aqueous reaction in which an insoluble product (precipitate) is formed is called __ reaction.

Q.

Explain precipitation reaction with example.

Q.

Precipitation produces soluble substances.

1. True
2. False

Q. What do you mean by a precipitation reaction? Explain by giving example.

Q. $3CaC{l}_2+2N{a}_{3}P{O}_4⟶C{a}_3(P{O}_4{)}_2+2NaCl$. This reaction is an example of_________.

1. double decomposition reaction
2. precipitation reaction
3. both A and B
4. none of the above

Q. $CdS{O}_4+K_{2}S⟶CdS+K_{2}S{O}_4$.

1. double displacement reaction
2. precipitation reaction
3. both A and B
4. none of the above

Q. State the conditions necessary for a chemical change or reaction.