When Iron nails are added to an aqueous solution of copper sulphate, a chemical change occurs, which
of the following is not true about this reaction?
What happens when dil hydrochloric acid is added to iron fillings?
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In reaction SO2 + 2H2S → 2H2O + 3S the reducing agent is –
Fe2O3 + 2Al → Al2O3 + 2Fe
This reaction is an example of –
Conversion of CaCO3 into CaO as per the following reaction is an example of –
CaCO3 → CaO + CO2
The second most abundant metal present in the crust of the earth is –
Which metal is used for making foils used in packing of food materials –
Which of the following metal react vigorously with oxygen –
Which of the following metals is less reactive than hydrogen –
NaHCO3 represent the formula of which one of the following ?
Fats + NaOH → ........+ Glycerol. One of the product formed in this reaction is –
Which of the following method is not used in preparing a base?
Which of the following is not a decomposition reaction?
In the reaction M + O2 → MO2 (super oxide) the metal is -
Which non-metal is the best conductor of electricity –