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Match List – I with List – II for the compositions of substances and select the correct answer using the code given below the lists: List - I: (1) Plaster of paris (2) Epsomite (3) Kieserite (4) Gypsum List - II: (i) CaSO4·2H2O (ii) CaSO4·½H2O (iii) MgSO4·7H2O (iv) MgSO4·H2O (v) CaSO4 Code: (1) (2) (3) (4) (a) (iii) (iv) (i) (ii) (b) (ii) (iii) (iv) (v) (c) (i) (ii) (iii) (v) (d) (iv) (iii) (ii) (v)

1. (iii) (iv) (i) (ii)
2. (ii) (iii) (iv) (v)
3. (i) (ii) (iii) (v)
4. (iv) (iii) (ii) (v)

Correct answer: (ii) (iii) (iv) (v)

Solution

Plaster of Paris is CaSO4·½H2O, Epsomite is MgSO4·7H2O, Kieserite is MgSO4·H2O, and Gypsum is CaSO4·2H2O. Matching these compositions gives the correct code.

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