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tankabanditka [31]
3 years ago
10

3

Chemistry
1 answer:
sergey [27]3 years ago
7 0
It will be B, to your answer why it wouldn’t be D this is because CaCO3 Is poorly soluble in pure water this is because of the high electrostatic force of attraction the atoms are held so strongly together that you can not only break it easy but also cannot dissolve it
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ANSWER THIS AND YOU WILL BE THE BRAINEST!!!!!!!
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<h3>Answer:</h3>

               Option-B (Halide; oxide) is the correct answer.

<h3>Explanation:</h3>

                  <em> Halides</em> are those substances which contains negatively charged halide ion i.e. X⁻.

Examples:  F⁻ (Fluoride) , Cl⁻ (Chloride) , Br⁻ (Bromide) , I⁻ (Iodide) e.t.c.

                   <em>Oxides </em>are those substances which atleast containn one Oxygen atom.

Examples:  FeO (Iron Oxide), Cr₂O₃ (Chromium Oxide)

                   <em>Silicates</em> are those anionic substances which contains silicon and oxygen with general formula  [SiO. 4−x] n.

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                   <em>Carbonates </em>are those substances which contains carbonate anion i.e. CO₃²⁻.

Examples:  Na₂CO₃ (Sodium Carbonate) , MgCO₃ (Magnesium Carbonate)

<h3>Conclusion:</h3>

                   As in NaCaAlF, F⁻ is present hence, it is an Halide and the presence of O in FeCrO makes it Oxide.

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