Question

Which of the following is used to obtain $KCl$ from sylvine?
a).Boil hot saturated solution of sylvine in water and cool.
b).Electrolysis of fused sylvine.
c).Electrolysis of aqueous sylvine solution.
d).All of the above.

Answer 1

Hint: Sylvite, or sylvine, is potassium chloride ( ) in natural mineral form. It forms crystals within the isometric system very similar to normal common salt, halite, the 2 are, in fact, isomorphous. Sylvite is colorless to white with reminders yellow and red because of inclusions. It has a refractive index ratio of 1.4903. Sylvite encompasses a salty taste with a certain bitterness. Sylvite is one in every of the last evaporite minerals to precipitate out of solution. As such, it's only found in very dry saline areas. Its principal use is as a potassium fertilizer.

Complete answer:
Potassium (K) fertilizers are commonly accustomed to overcome plant deficiencies. Where soils cannot supply the quantity of K required by crops, farmers must supplement this essential plant nutrient. Potash might be a general term used to describe a spread of K-containing agricultural fertilizers. Potassium Chloride ( ), the foremost commonly used source, is additionally frequently named as muriate of potash, or MOP (muriate is that the old name for any chloride-containing salt).
Boil a hot saturated solution of sylvine in water and funky, separates out the chemical and sodium chloride compound is left behind in solution.

Hence (a) is the correct option.

Note:
Deeply buried potash deposits exist throughout the world. The dominant mineral is sylvite mixed with halite (sodium chloride), which forms a mixed mineral called sylvinite. Most potassium minerals are harvested from ancient marine deposits deep beneath the Earth’s surface. They're then transported to a processing facility where the ore is crushed and also the potassium salts are separated from the sodium salts. The color can vary from red to white, betting on the source of the sylvinite ore. The reddish tint comes from trace amounts of iron oxide. There don't seem to be any agronomic differences between the red and white types.