What are the constituents of german silver?
German silver varies in composition, the percentage of the three elements ranging approximately as 60% copper, 20% nickel and 20% zinc.
1 Answers 1 viewsAnswer 2AgNO3 (aq) + Cu (s) → Cu(NO3)2 (aq) + 2Ag (s) Silver Nitrate + Copper → Copper Nitrate + Silver
1 Answers 1 viewsThe process of German unification was continued by Prussia after the defeat of the liberal, middle-class Germans at the hands of the aristocrats and the military in 1848. Its chief...
1 Answers 1 viewsPhloem is the food conducting tissue in plants. It is made up of four components: (i) Sieve tubes (ii) Companion cells (iii) Phloem parenchyma (iv) Phloem fibres
1 Answers 1 viewsAtomic mass of silver (Ag) = 108 u Since mass of 6.022 × 1023 atoms of silver (Ag) = 108 u Hence mass of 3.011 × 1023 atoms of silver (Ag) = 108×3.011×1023/...
1 Answers 1 viewsMass of silver = m g Mass of gold = m /100g Number of atoms of silver = Mass/ Atomic mass X NA ...
1 Answers 1 views(a) Fossil fuels are coal, petroleum and natural gas. (b) Process of separation of different constituents from petroleum is called refining. (c) Least polluting fuel for vehicles is CNG.
1 Answers 1 viewsCu = 25-30%, Zn = 25-30%, Ni = 40-50%]
1 Answers 1 views[Hint : Drugs used to check pregnancy in women to control birth rate. Oral contraceptives contains a mixture of synthetic estrogen and progesterone derivatives.
1 Answers 1 views(C) Formation of compost from vegetable matter. Reactions given in option (A), (B) and (D) are examples of endothermic reactions and require energy in form of heat, light and electricity respectively....
1 Answers 1 views