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Describe the following observations:
a. Lyophilic colloid is more stable than Lyophobic colloid.
b. Coagulation takes place when sodium chloride solution is added to a colloidal solution of ferric hydroxide.
c. Why Sky appears blue in colour.
The two electrons in K sub-shell will differ in : (1)Principal quantum number (2)Azimuthal quantum number (3)Magnetic quantum number (4)Spin quantum number Ans:Spin
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Electronic configuration of ferric ion is: (1) [Ar] 3d 5 (2) [Ar] 3d 7 (3) [Ar] 3d 3 (4) [Ar] 3d 8 Ans: [Ar] 3d 5
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Role of organic solvents in atomisation: The organic solvents of low molar mass like alcohols, ethers, and ketones enhance the absorption peaks by increasing rate of aspiratio
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