Bronze is an alloy of
Bronze is an alloy of A. copper, zinc and nickel B. aluminium and copper C. copper and zinc…
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The reaction 3C(s) + 2Fe2O3(s) = 4Fe(s) + 3CO2(g): (Delta)H =46.0 kJ is
The reaction 3C(s) + 2Fe2O3(s) = 4Fe(s) + 3CO2(g): (Delta)H =46.0 kJ is A. isothermic B. adiabatic C.…
The solution of a sample in a tube will be identified as a chloride if…
The solution of a sample in a tube will be identified as a chloride if it gives A.…
In the manufacture of iron in the blast furnace, iron (lll) oxide is mixed with…
In the manufacture of iron in the blast furnace, iron (lll) oxide is mixed with coke and limestone,…
the vapour density of a gas may be defined as
the vapour density of a gas may be defined as A. the mass of a unit volume of…
The reaction between hydrogen and iodine may be represented by the equation H2(g)+ I2(g) →…
The reaction between hydrogen and iodine may be represented by the equation H2(g)+ I2(g) → 2HI(g), and is…
In which of the following reactions is sulphur dioxide acting as an oxidizing agent?
In which of the following reactions is sulphur dioxide acting as an oxidizing agent? A. SO 2 +…
Calcium hydroxide and ammonium chloride when heated together will give an important product. This compound…
Calcium hydroxide and ammonium chloride when heated together will give an important product. This compound may be obtained…
Starch can be converted to ethyl alcohol by
Starch can be converted to ethyl alcohol by A. distillation B. fermentation C. isomerization D. cracking E. cooking…
An anhydride is?
An anhydride is? A. a compound wich has no water of crystallization B. an oxide whose solution in…