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find two different substances and how they are produced. Once you have this information, look at their properties and how they are used, and explain how these properties affect th
Bond formed in crystal by anion and cation is: (1) Ionic (2) Metallic (3) Covalent (4) Dipole Ans: Ionic
2Zns + 3O 2 ---------> 2ZnO + 2SO 2 ZnCO 3 -------------> ZnO + CO 2 ZnO +C ------> Zn +CO ZnO + CO -----------> Zn + C0 2
The shape of s -orbital is: (1) Pyramidal (2) Spherical (3)Tetrahedral (4)Dumb-bell shaped Ans: Spherical
Which forms a crystal of Nacl: (1) Nacl molecules (2) Na + and cl - ions (3) Na andcl atoms (4) None of the above Ans: Na + and cl - ions
Uses of oils and fats (a) Several oils and fats are used as food material. (b) Oils and fats are employed for the manufacture of glycerol, fatty acids, soaps, candles, veget
The elements of first transition series from variety of oxides of different oxidation states having general formulae MO, M 2 O 3 , M 3 O 6 , MO 2 , MO 3 . These oxides are gene
fitration
What is the out'' standing features of boron
how many grams are there in 1.204 *10^24 atoms of Au?
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