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Q1)magnesium ribbon is rubber before burning because it has a coating of ?
Q2 oxidation is a process which involves ?
Q3) the process of reduction involves ?
Q4) give the ratio in which hydrogen and oxygen are present in water by volume ?
Q5) when Ag is exposed to air it's gets a black coating of ?
Q6) which of the following is an endothermic process?
Q7) what types of chemical reaction takes place when electricity is passed through water ?
Q8) a substance added to food containing fats and oils is called ?
Q9) which of the following gases can be used for storage ?
Q10) the formula of ammonium phosphate is ?
Q11) the brown gas evolved on heating of copper nitrate is ?
Q12) zinc react with silver nitrate to from which compounds ?
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