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CBSE Class 12-science Answered

What is dissolution? How is it different with crystallization?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer
When a solid solute is added to the solvent, some solute dissolves and its concentration increases in solution. This process is known as dissolution. When some solute particles in solution collide with the solid solute particles and get separated out of solution. This process is known as crystallisation. A stage is reached when the two processes occur at the same rate in a solution.
Answered by | 04 Jun, 2014, 03:23: PM
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CBSE 12-science - Chemistry
At the same temperature, CO2 gas is more soluble in water than O2. Which one of them will have a higher value of KH, and why?   
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CBSE 12-science - Chemistry
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CBSE 12-science - Chemistry
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Asked by gopirammeghwal78 | 05 Aug, 2021, 08:18: AM
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CBSE 12-science - Chemistry
Assertion : Sugar molecules are moving from left to right side. Reason : Water molecules can’t pass through semi permeable membrane.
Asked by msambyal307 | 30 May, 2021, 02:03: PM
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CBSE 12-science - Chemistry
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Asked by pandeyn1604 | 29 May, 2019, 09:16: AM
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CBSE 12-science - Chemistry
how many ml of 0.1M HCL are required to react completely with 1g mixture of and NaHCO3 containing equimolar amounts of both?
Asked by rakeshraghav33 | 18 Sep, 2018, 04:22: PM
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CBSE 12-science - Chemistry
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Asked by Avadhut Katkar | 14 Sep, 2018, 12:37: PM
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CBSE 12-science - Chemistry
Assertion :- CaCl2, CaSO4, Ca(HSO4)2 & Ca(OH)2 will cause hardness in water. Reason :- All soluble salts of Ca+2 and Mg+2 cause hardness.
Asked by minipkda | 21 May, 2018, 10:19: PM
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CBSE 12-science - Chemistry
Define solubility.
Asked by Topperlearning User | 20 Jun, 2016, 04:00: PM
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