Stable shape in which PbCrO4 exist:
Correct answer: B. Monoclinic
- A. Triclinic
- B. Monoclinic
- C. Rhomleric
- D. None of these
Explanation
Lead Chromate (PbCrO4) It is used as a pigment under the name of chrome yellow. Orange orred basic lead chromates are formed when lead chromate is boiled with dilute alkali hydroxide and are used as pigments. The stable yellow modification of lead chromate is monoclinic. Mixture of lead chromate with lead sulphate or barium sulphate are also used as yellow pigments.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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