1.

Match the column I with column II.column Icolumn IIA.  Aluminium(i) Froth floatationB. Cesium to Radon(ii) RoastingC. Halogens(iii) Passive with dil.HNO3D. Galena(iv) Longest periodE. Metallic oxide to metal(v) ns2 np5

Answer»

A. (iii) 

B. (iv) 

C. (v) 

D. (i)

E. (ii)



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