Answer
Verified
28.8k+ views
Hint: Here we recall water of crystallization of copper sulphate. Four water molecules present in hydrated copper sulphate molecules are bonded by coordinate bonds while one water molecule is bonded by hydrogen bond.
Complete step by step answer:
Water of crystallization: Water of crystallization is the number of water molecules present in one formula unit of a salt. Formula units of copper sulphate contain five water molecules ($5{H_2}O$). When hydrated salt of copper sulphate is heated strongly, blue copper sulphate crystals turn white (due to the loss of water of crystallization). When $CuS{O_4}.5{H_2}O$ is heated it forms $CuS{O_4}$ and $5{H_2}O$ .
$CuS{O_4}.5{H_2}O$= (hydrated copper sulphate)
$CuS{O_4}$ = (anhydrous copper sulphate)
When anhydrous copper sulphate reacts again with water it will form Hydrated copper sulphate.
Correct answer is (B) visible.
Additional Information: On heating hydrated salt molecules become anhydrous as water molecules are evaporated. There may be equilibrium between hydrated salt molecules and anhydrous salt molecules and shifting of equilibrium in a particular side (forward direction or backward direction) depends on humidity in the environment. If humidity is more then more amount of hydrated salt molecules will form and if humidity is less then a certain value at a given temperature, then more amount of anhydrous salt molecules will form.
Note:
We can use water of crystallization also for other crystalline salts containing water molecules. For example: $MgS{O_4}.7{H_2}O$ and $N{a_2}C{O_3}.10{H_2}O$ .
Complete step by step answer:
Water of crystallization: Water of crystallization is the number of water molecules present in one formula unit of a salt. Formula units of copper sulphate contain five water molecules ($5{H_2}O$). When hydrated salt of copper sulphate is heated strongly, blue copper sulphate crystals turn white (due to the loss of water of crystallization). When $CuS{O_4}.5{H_2}O$ is heated it forms $CuS{O_4}$ and $5{H_2}O$ .
$CuS{O_4}.5{H_2}O$= (hydrated copper sulphate)
$CuS{O_4}$ = (anhydrous copper sulphate)
When anhydrous copper sulphate reacts again with water it will form Hydrated copper sulphate.
Correct answer is (B) visible.
Additional Information: On heating hydrated salt molecules become anhydrous as water molecules are evaporated. There may be equilibrium between hydrated salt molecules and anhydrous salt molecules and shifting of equilibrium in a particular side (forward direction or backward direction) depends on humidity in the environment. If humidity is more then more amount of hydrated salt molecules will form and if humidity is less then a certain value at a given temperature, then more amount of anhydrous salt molecules will form.
Note:
We can use water of crystallization also for other crystalline salts containing water molecules. For example: $MgS{O_4}.7{H_2}O$ and $N{a_2}C{O_3}.10{H_2}O$ .
Recently Updated Pages
To get a maximum current in an external resistance class 1 physics JEE_Main
If a wire of resistance R is stretched to double of class 12 physics JEE_Main
Let f be a twice differentiable such that fleft x rightfleft class 11 maths JEE_Main
Find the points of intersection of the tangents at class 11 maths JEE_Main
For the two circles x2+y216 and x2+y22y0 there isare class 11 maths JEE_Main
The path difference between two waves for constructive class 11 physics JEE_MAIN
Other Pages
1mol of ferric oxalate is oxidized by x mol of MnO4in class 11 chemistry JEE_Main
Two resistors 3ohm and 2ohm are connected in parallel class 12 physics JEE_Main
When phenol is distilled with Zn dust the main product class 12 chemistry JEE_Main
How many grams of concentrated nitric acid solution class 11 chemistry JEE_Main
Explain the formation of the following molecules using class 11 chemistry JEE_Main
The mole fraction of the solute in a 1 molal aqueous class 11 chemistry JEE_Main