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Explain with the help of [i] an ionic...

Explain with the help of [i] an ionic equation [ii] electron dot structural diagram - the formation of the following
[a] Sodium chloride [b] Calcium oxide [c] Magnesium chloride. [at.nos. Na = 11, Cl = 17, Ca = 20, O = 8, Mg = 12].

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Electron dot structure of Sodium chloride -
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Explain with the help of (i) an ionic equation (ii) electron dot structural diagram (iii) atomic or orbital structural diagram for the formation of the following: (a) Sodium chloride (b) Calcium oxide (c) Magnesium chloride.

Draw an electron dot diagram to show the formation of each of the following compounds : (i) Methane (ii) Magnesium Chloride [H = 1, C = 6, Mg = 12, Cl = 17]

Draw orbit structure diagram of: (a) sodium chloride (NaCl), (b) calcium oxide (CaO). [Atomic numbers Na = 11, Ca = 20, Cl = 17,O = 8).

Draw the electron dot structure of : [i] Nitrogen molecule [N = 7] , [ii] Sodium chloride [Na = 11, Cl = 17] , [iii] Ammonium ion [N = 7, H = 1 ]

Explain with the help of - electron dot diagrams - the formation of the following molecules, stating the valency of each element involved. [a] Hydrogen [b] Chlorine [c] Oxygen [d] Nitrogen [e] Water [f] Methane [ g] Carbon tetrachloride [h] Ammonia [i] Carbon dioxide [at.nos. H = 1, C = 6, N = 7, O = 8, Cl = 17].

Draw the electron dot diagram for the compounds given below. Represent the electrons by (.) and (x) in the diagram : [Atomic No. Ca = 20, O = 8, Cl = 17, H = 1] Calcium oxide

Draw the electron dot diagram for the compounds given below. Represent the electrons by (.) and (x) in the diagram : [Atomic No. Ca = 20, O = 8, Cl = 17, H = 1] Chlorine molecule

Draw the electron dot diagram for the compounds given below. Represent the electrons by (.) and (x) in the diagram : [Atomic No. Ca = 20, O = 8, Cl = 17, H = 1] Water molecule

Solid calcium oxide was taken in a container and water was added slowly to it. (i) State two observations made in the experiment. (ii) Write the balanced chemical equation of this reaction. or Write balanced chemical equations for the following reactions : (a) dilute sulphuric acid reacs with aluminium powder. (b) dilute hydrochloric acid reacts with sodium carbonate. (c ) Carbon dioxideis passed through lime water.

Based on the symbols with valencies & charges write the formula of the following compounds (i) Mg^(2+) Cl^(-) (Magnesium Chloride) (ii) K^(+)Cr_2O_7^(2-) (Potassium Dichromate)

ICSE-SAMPLE PAPER 2019-SECTION-II (40 Marks) Attempt any four questions from this Section
  1. Draw the electron dot structure of : Nitrogen molecule (N=7]

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  2. Explain with the help of [i] an ionic equation [ii] electron do...

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  3. Draw an electron dot diagram to show the formation of ammonium ion [N ...

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  4. The pH values of three solution, A, B and C are given in the table. An...

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  5. The pH values of three solution, A, B and C are given in the table. An...

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  6. The pH values of three solution, A, B and C are given in the table. An...

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  7. Study the extract of the Periodic Table given below and answer the que...

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  8. Study the extract of the Periodic Table given below and answer the que...

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  9. Study the extract of the Periodic Table given below and answer the que...

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  10. Study the extract of the Periodic Table given below and answer the que...

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  11. The particles present in strong electrolytes are

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  12. Name the particles present in Non-electrolyte

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  13. The particles present in strong electrolytes are

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  14. Distinguish between the following pairs of compounds using the reagent...

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  15. Distinguish between the pairs of compounds using the reagent given in ...

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  16. Distinguish between the following pairs of compounds using the reagent...

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  17. Choose the method of preparation of the following salts, from the meth...

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  18. Choose the method of preparation of the following salts, from the meth...

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  19. Choose the method of preparation of the following salts, from the meth...

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  20. Choose the method of preparation of the following salts, from the meth...

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