.
Hydrated ferrous oxide
Only ferric oxide
Hydrated ferric oxide
None of these
Heavier than air
Colourless
Acidic in nature
Soluble in water
Oxidation
Corresion
Reduction
Hydrogenetion
A white solid
Undergoes redox reaction
To avoid action of sunlight
None of these
Black
White
Yellow
Pink
Electrolysis of water
Dissolution of NH4Cl in water
Burning of L.P.G.
Decomposition of AgBr in presence of sunlight
Adding antioxidants
Storing food away from the light
Keeping food in refrigeretor
All of these
Combination reaction
Redox reaction
Exothermic reaction
All of these reaction
Displacement reaction
Combination reaction
Double displacement reaction
Redox reaction
X=Fe, Y=Fe2O2
X=Ag, Y=Ag2s
X=Cu, Y=CuO
X=Al, Y=Al2O3
Make the ribbon surface shinier
Remove the layer of magnesium oxide from the ribbon surface
Remove the layer of magnesium carbonate from the ribbon surface
Remove the moisture from the ribbon surface
Hydrochloric acid
Barium sulphate
Chlorine
Sulphur
Exothermic process
Endothermic process
Reversible
Physical process
Formation of new substances having entirely different properties than that of the reactants
Breaking of old chemical bonds and formation of new chemical bonds
Rearrangement of the atoms of reactants to form new products
Changing of the atoms of on element into those of another element to form new products
Melting of candle wax when heated
Burning of candle wax when heated
Digestion of food in our stomach
Ripening of banana
Conservation of motion
Conservation of momentum
Conservation of energy
Conservation of mass
Combination reaction as well as double displacement reaction
Redox reaction as well as displacement reaction
Double displacement reaction as well as redox reaction
Decomposition reaction as well as displacement reaction
Blue to green
Green to Blue
Green to Broun
Broun to Green
Carbondioxide gas
Nitrogen
Oxygen
Neon
Distillation of water
Purification of water
Electrolysis of water
Hydrolysis
Copper granules
Magnesium ribbon
Sodium pellets
Aluminium dust
Double displacement reaction
Displacement reaction
Addition reaction
Decomposition reaction
Iodine and sulphur respectively
Iodine and hydrogen sulphide respectively
Sulphur and iodine respectively
Hydrogen sulphide and sulphur
Combination
Double displacement
Decomposition
Displacement
Mg
Na
K
Al