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WorksheetsChapter - 1 Chemical Reaction and Equations
Total questions: 15
Worksheet time: 12mins
The Balanced Chemical Equation is also known as,
Allen – Cahn Equation
Arrhenius Equation
Stoichiometric Equation
Archard Equation
What information does a Chemical Equation convey ?
Various Reactants and their Products
The relative Amounts ( in mole ) of the Reactants and the Products
The specific conditions necessary for the Reactions
Number of atoms or molecules of the reactants and products formed
All of the Above
In which of the following displacement reaction will not take place ?
Between Iron and Copper Carbonate
Between Calcium and Magnesium Hydroxide
Between Aluminium and Magnesium Hydroxide
Between Zinc and Iron Sulphate
The other name by which Double Displacement Reaction is known as ,
Double Combination Reaction
Double Decomposition Reaction
Metathesis
All of the Above
None of the Above
Which is the law that is being used for balancing an equation ?
Law of Conservation of Masses
Law of Constant Proportions
Avogadro's Law
Both (a) and (b)
Which of the following are the types of Decomposition Reactions ?
Thermal Decomposition
Photo - Chemical Decomposition
Electrolytic Decomposition
Both (a) , (b) and (c)
None of the Above
Which of the following Equations is Balanced ?
3 NaH2PO4 → 4 NaPO3 + H2O
4 H3PO4 → 3 H4P2O7 + 6 H2O
2 C2H6 + 7 O2 → 6 H2O + 4 CO2
None of the Above
The following reaction is used for the preparation of oxygen gas in the laboratory
2KClO3 (s) + Heat + Catalyst → 2KCl (s) + 3O2 (g)
Which of the following statement(s) is(are) correct about the reaction?
(a) It is a decomposition reaction and endothermic in nature
(b) It is a combination reaction
(c) It is a decomposition reaction and accompanied by release of heat
(d) It is a photochemical decomposition reaction and exothermic in nature
None of the Above
Which of the following indicates that a chemical equation is balanced?
The numbers of molecules on each side of the equation are equal.
All of the coefficients are the same.
The numbers of atoms of each element are the same on both sides of the equation.
The sums of the coefficients on each side of the equation are equal.
When should you write the temperature or pressure above the arrow in a chemical reaction?
When it is at standard temperature or pressure
When it is not at standard temperature or pressure
When the pressure is 1 Atmospheric Pressure
When the temperature is 0 degrees Celcius
Potassium Chlorate is heated in presence of catalyst to produce oxygen and potassium chloride.Which of the following statement(s) is (are) correct about the reaction?
(a) It is a decomposition reaction and endothermic in nature
(b) It is a combination reaction
It is a decomposition reaction and accompanied by release of heat
(d) It is a photochemical decomposition reaction and exothermic in nature
None of the Above
A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?
KMnO4 is an oxidising agent, it oxidises FeSO4
FeSO4 acts as an oxidising agent and oxidises KMnO4
The colour disappears due to dilution; no reaction is involved
KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compound.
Q1. The following reaction ( Balanced Equation ) is an example of -
4NH3 + 5O2 → 4NO + 6H2O
Decomposition reaction
Precipitation reaction
Redox reaction
Neutralization reaction
None of the Above
