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JEE CHEMISTRY MCQ: S-BLOCK ELEMENTS
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Medium
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Analyzing
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is a ternary salt with divalent cation. gives yellow ppt. with as well as with . (A) is precipitated by neither in acidic nor ammoniacal medium, but addition of in gave white ppt. (B). of gave of . Identify .
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Correct option: A
The correct answer is A () because it satisfies the given conditions of forming yellow precipitates with and , and forming a white precipitate with in .
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Assertion (A): Among the alkali metals, lithium salts exhibit the least electrical condutance in aqueous solutions.
Reason (R): Smaller the radius of the hydrated cation, lower is the electrical conductance in aqueous solutions. In the Down’s cell is added in to: Which of the alkali metal is having least melting point? Fusion mixture is comprised of: Statement 1: is predominatly a covalent compound.
Statement 2: Electronegativity difference between and is too small. Metal air white fumes. Metal can be
Reason (R): Smaller the radius of the hydrated cation, lower is the electrical conductance in aqueous solutions. In the Down’s cell is added in to: Which of the alkali metal is having least melting point? Fusion mixture is comprised of: Statement 1: is predominatly a covalent compound.
Statement 2: Electronegativity difference between and is too small. Metal air white fumes. Metal can be