Q. Change of orange color of Chromium(VI) (Cr+6) to green color of Chromium(III) (Cr+3) indicates presence of a

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Q. Exothermic reactions are

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Q. When dichromate (VI) ion becomes reduced to chromium (III) ion, a change of color occurs from

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Q. Reducing agents does not include

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Q. At high temperatures, enzymes...

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Q. If Potassium Iodide (KI) acts as oxidizing agent, change occurs from, indicates presence of

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Q. In Copper(II) Oxide (CuO) and Carbon Monoxide (CO) reaction,

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Q. On hydration, [Al(H₂O)₆]³⁺ (aq) produces

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Q. The oxidation number of Si in SiCl₄ is

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Q. The solution is turned acidic upon hydration of AlCl₃, because

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Q. In S₂Cl₂, the oxidation number is

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Q. Consider the reaction: SiCl₄(l) + 2H₂O(l) → SiO₂ + HCl. The color of SiO₂ is

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Q. The dimer of AlCl₃ is

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Q. In period 3, metal that has the highest electronegativity is

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Q. Consider the reaction: SiCl₄(l) + 2H₂O(l) → SiO₂(s) + HCl. The form of HCl produced in this reaction is

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Q. Upon hydration of Al₂Cl₆, Al⁺³ is formed, and the solution becomes

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Q. The oxidation number of Na in NaCl is

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Q. The oxidation number of Al in Al₂Cl₆ is

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Q. Ionic Chlorides of which of these do not react with water

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Q. Without water, aluminum chloride exists as

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