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WorksheetsX-SCI-L:10-P-2
Total questions: 10
Worksheet time: 5mins
one of the elements of the reactant is replaced by the element-reactant to form a new compound and an element. is called as .............
single displacement reaction
double displacement reaction
multidisplacement reaction
triple displcaement reaction
Iron (Fe) reacts with copper sulphate (CuSO4) gives ...................&..................
ferrous sulphate (FeSO4)&Copper(Cu)
Copper(Cu)&Iron(Fe)
Aluminium sulphate (Al2(SO4)3&Copper(Cu)
zinc sulphate (ZnSO4)&Copper(Cu)
When two compounds react, if their ions are interchanged, then the reaction is called ...............displacement reaction.
single
double
triple
quadra
.....................reaction are double displacement reaction
combination
combustion
precipitation
decomposition
NaOH(aq) + HCl(aq) → ? + H2O(l)
sodium chloride (NaCl)
potassium chloride(KCl)
sodium sulphite (Na2SO3)
Pb(NO3 )2(aq) + 2KI(aq) → ?↓ + 2KNO3(aq)
Lead iodide (PbI)
Lead sulphate (PbSO4)
Lead chloride (PbCl2)
A ............... reaction is one in which the reactant rapidly combines with oxygen to form one oxide and energy (heat)
combination
single displacement
combustion
double displacement
Chemical reactions are classified into ..................&.............based on the direction of the reaction
reversible &combination
irreversible &displacement
reversible &irreversible
combustion
A reversible reaction is a reaction that can ...................
reversed
not reversed
The products can be converted back to the reactants in the ................... reaction
reversible
irreversible
combination
combustion
