Question: Solve Q-7 (A) A, B, C, D are the elements whose atomic numbers are 16, 19, 18, and 13 respectively. Write down the electronic configuration

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Q-7 (A) A, B, C, D are the elements whose atomic numbers are 16, 19, 18, and 13 respectively. Write down the electronic configuration of each element and classify them as metal, non-metal, and noble gases. [02] (B) Draw the orbit structure diagram of (I) KCI (II) Mgo [Atomic no. of K=19, C1=17, Mg=12, 0=8] [02] (C) Calculate the percentage composition of each element in Ca(OH)2 compound. [03] (Atomic mass of: 0=16, H=1, Ca=40) (D) Write the balanced chemical equation for the following word equation. (I) Aluminium carbide + water- Aluminium hydroxide + Methane [03] (II) Tin + Caustic potash - Potassium stannite + Hydrogen (III) Iodine + Nitric acid - Nitric acid + Iodic acid + Water 3 4 -. 37 236 5 2 37 3 7 14810 32 4 185 74 X 3 148 259 0260 6 . 11 1 3 WA 4 3 . 37/ 1810 0 54 . 5 2090 0 3 2

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