Answer
Verified
39k+ views
Hint: Precipitate: It is defined as the ions or molecules in two solutions that react to form a solid. A solid formed from two solutions is called a precipitate. The precipitate formed here is white in colour and the cation present in it has 30 protons and 28 electrons in it.
Complete step-by-step answer:
A solution of ${ Zn }^{ +2 }$ the particle reacts with water which on bubbling gives white ppt. of ${ Zn(OH) }_{ 2 }$. This precipitate dissolve in an abundance of ${ NH }_{ 4 }{ OH }$ in the presence of ${ NH }_{ 4 }{ Cl }$ in light of the fact that ${ Zn(OH) }_{ 2 }$ on reaction with ${ NH }_{ 4 }{ OH }$ in the presence of ${ NH }_{ 4 }{ Cl }$ structures tetrammine zinc (II) complex (soluble).
The following reactions will take place:
${ Zn }^{ +2 }{ +2H }_{ 2 }{ O\rightarrow Zn(OH) }_{ 2 }{ +2H }^{ + }$
${ Zn(OH) }_{ 2 }{ +NH }_{ 4 }{ OH+NH }_{ 4 }{ Cl\rightarrow \left[ Zn\left( { NH }_{ 3 } \right) _{ 4 } \right] ^{ 2+ } }{ +4H }_{ 2 }{ O+2OH }^{ - }$
The precipitate of ${ Zn(OH) }_{ 2 }$ forms dissolves in excess of ${ NH }_{ 4 }{ OH }$ to form a tetrammine complex which is soluble.
Hence, the correct option is A.
Additional Information:
Properties of precipitate reaction:
1. The precipitation reaction experiences in aqueous solutions or mediums in an ionic state.
2. The reaction happens between particles present in the aqueous solution, and the product is formed.
3. The products formed at the end of precipitation reaction are the hastens which are insoluble in aqueous solutions.
4. Precipitation responses are known as ionic responses since the particles effectively participate in the reaction and structure of the product.
5. These reactions rely upon the temperature, convergence of the arrangement, support arrangement, and so on.
Note: The possibility to make a mistake is that you may choose option D. But when calcium hydroxide reacts with ${ NH }_{ 4 }OH{ /NH }_{ 4 }{ Cl }$ then calcium chloride will be formed but the product formed is orangish-red, not white.
Complete step-by-step answer:
A solution of ${ Zn }^{ +2 }$ the particle reacts with water which on bubbling gives white ppt. of ${ Zn(OH) }_{ 2 }$. This precipitate dissolve in an abundance of ${ NH }_{ 4 }{ OH }$ in the presence of ${ NH }_{ 4 }{ Cl }$ in light of the fact that ${ Zn(OH) }_{ 2 }$ on reaction with ${ NH }_{ 4 }{ OH }$ in the presence of ${ NH }_{ 4 }{ Cl }$ structures tetrammine zinc (II) complex (soluble).
The following reactions will take place:
${ Zn }^{ +2 }{ +2H }_{ 2 }{ O\rightarrow Zn(OH) }_{ 2 }{ +2H }^{ + }$
${ Zn(OH) }_{ 2 }{ +NH }_{ 4 }{ OH+NH }_{ 4 }{ Cl\rightarrow \left[ Zn\left( { NH }_{ 3 } \right) _{ 4 } \right] ^{ 2+ } }{ +4H }_{ 2 }{ O+2OH }^{ - }$
The precipitate of ${ Zn(OH) }_{ 2 }$ forms dissolves in excess of ${ NH }_{ 4 }{ OH }$ to form a tetrammine complex which is soluble.
Hence, the correct option is A.
Additional Information:
Properties of precipitate reaction:
1. The precipitation reaction experiences in aqueous solutions or mediums in an ionic state.
2. The reaction happens between particles present in the aqueous solution, and the product is formed.
3. The products formed at the end of precipitation reaction are the hastens which are insoluble in aqueous solutions.
4. Precipitation responses are known as ionic responses since the particles effectively participate in the reaction and structure of the product.
5. These reactions rely upon the temperature, convergence of the arrangement, support arrangement, and so on.
Note: The possibility to make a mistake is that you may choose option D. But when calcium hydroxide reacts with ${ NH }_{ 4 }OH{ /NH }_{ 4 }{ Cl }$ then calcium chloride will be formed but the product formed is orangish-red, not white.
Recently Updated Pages
silver wire has diameter 04mm and resistivity 16 times class 12 physics JEE_Main
A parallel plate capacitor has a capacitance C When class 12 physics JEE_Main
A series combination of n1 capacitors each of value class 12 physics JEE_Main
When propyne is treated with aqueous H2SO4 in presence class 12 chemistry JEE_Main
Which of the following is not true in the case of motion class 12 physics JEE_Main
The length of a potentiometer wire is 10m The distance class 12 physics JEE_MAIN
Other Pages
A closed organ pipe and an open organ pipe are tuned class 11 physics JEE_Main
A convex lens is dipped in a liquid whose refractive class 12 physics JEE_Main
Iodoform can be prepared from all except A Acetaldehyde class 12 chemistry JEE_Main
The resultant of vec A and vec B is perpendicular to class 11 physics JEE_Main
448 litres of methane at NTP corresponds to A 12times class 11 chemistry JEE_Main
Dissolving 120g of urea molwt60 in 1000g of water gave class 11 chemistry JEE_Main