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9th Class Science Atoms and Molecules Question Bank 9th CBSE Science Atoms and Molecules

  • question_answer
         (a) Write chemical formulae of the following compounds (i) Aluminium nitride (ii) Ammonium phosphate (b) Name an element which shows a variable valency. Write the formulae of its two chlorides. 

    Answer:

       (a) (i) AIN                    (ii) (b) Iron (Fe), it forms and with chlorine.


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