SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A solid substance that forms when 2 liquid solutions are combined?
A
Sublimation
B
Precipitate
C
Condensation
D
Freezing
Explanation: 

Detailed explanation-1: -Precipitation is the process of formation of an insoluble solid when solutions are mixed. The solid thus formed is called precipitate. Only those compounds form precipitates which are insoluble in water.

Detailed explanation-2: -A precipitate is a solid which is formed when two liquids are combined and then react. It is a different substance to either of the reactants and does not dissolve in the reaction mixture. It may either sink to the bottom or remain suspended within the solution.

Detailed explanation-3: -Precipitation reactions occur when cations and anions in aqueous solution combine to form an insoluble ionic solid called a precipitate. Whether or not such a reaction occurs can be determined by using the solubility rules for common ionic solids.

Detailed explanation-4: -In chemistry, a precipitate is an insoluble solid that emerges from a liquid solution. The emergence of the insoluble solid from solution is called precipitation. Often the precipitate emerges as a suspension. Precipitates can form when two soluble salts react in solution to form one or more insoluble products.

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