Question Bank
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In the reaction $Zn + 2HCl \rightarrow ZnCl_2 + H_2$, what is the role of Zn?
Which of the following equations represents a reversible reaction?
When copper(II) nitrate is heated, it produces copper(II) oxide, nitrogen dioxide, and oxygen. This is an example of:
In which of the following conditions will Iron rust fastest?
What is the coefficient of O2 when the reaction $C_3H_8 + O_2 \rightarrow CO_2 + H_2O$ is balanced?
Which of the following is the most active metal among those given?
What is the net ionic equation for the neutralization of a strong acid and a strong base?
During the electrolysis of acidified water, which gas is collected at the cathode?
What type of reaction releases energy in the form of light only (without significant heat)?
In the reaction: $2PbO + C \rightarrow 2Pb + CO_2$, carbon acts as:
How many moles of hydrogen are required to produce 2 moles of Ammonia (NH3)?
In the reaction $H_2 + Cl_2 \rightarrow 2HCl$, which of the following is true regarding electrons?
According to Le Chatelier's Principle, what will happen to the equilibrium of the reaction $N_2 + 3H_2 \rightleftharpoons 2NH_3 + Heat$ if the temperature is increased?
Calculate the mass of Oxygen required to burn 12g of Carbon completely.
Which of the following is a disproportionation reaction?
If 50g of $CaCO_3$ is heated, what volume of $CO_2$ is produced at NTP? (Molar mass of $CaCO_3 = 100g/mol$)
What is the oxidation number of Sulfur in $H_2SO_4$?
Which of the following is an example of an autocatalytic reaction?