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Name the principal ore of tin or lead.
Describe the different steps (along with equationsfor the reactions) involved in the extraction of the metal from the ore named.
Name an important alloy of each, tin and lead.
Q. Show the properties of Tetrahydrido borate? Tetrahydrido borate anion BH - 4 has a tetrahedral structure which can be explained on the basis of sp 3 hybridisation of boron
When 100 ml of M/10 H2SO4 is mixed with 500 ml of My/10 NaOH then nature of resulting solution and normality of excess reactant left is
Halogen Containing Compounds Compounds that are derived from hydrocarbons by the replacement of one or more than one hydrogen atoms by the corresponding number of halogen atoms
it is impossibe to synthesise orgnic compounds in the lab since life force is essential for their formation -theory is known as
Atoms with the different numbers of neutrons and same atomic number are known as isotopes. The chemical properties of an element are determined by wildly the charge on the nucleus,
Heat Conductivity When considering the design of houses, the heat conductivity by walls, roofs, and the floor plays an significant role. The heat conductivities (λ) of some bui
How many moles of octane must be burned to release 525.1 kcal ?
what is the theoretical background of the topic?
explain the construction of calomel electrode.explain how this electrode is used to determine the potential of an unknown electrode
density of gas is 2.86 ltr.the gas maz be-
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