Chemical Reactions
Practice Chemical Reactions MCQs from Chemistry — Science.
What happens when an iron nail is dipped in a blue copper sulfate solution?
Which type of reaction is represented by $2KClO_3 \xrightarrow{\Delta, MnO_2} 2KCl + 3O_2$?
What is the role of sunlight in the reaction between Methane and Chlorine?
In the reaction $CuO + CO \rightarrow Cu + CO_2$, which substance is the reducing agent?
Which gas is evolved when calcium carbonate reacts with dilute hydrochloric acid?
An example of a reaction where a solid and a gas react to form another solid is:
What is the color change when phenolphthalein is added to an alkaline solution (base)?
Which of the following is an endothermic reaction?
In the reaction $2H_2S + SO_2 \rightarrow 3S + 2H_2O$, identify the oxidizing agent.
What is the equivalent weight of Calcium Carbonate ($CaCO_3$)?
Which of the following is true for a system at chemical equilibrium?
How many liters of Oxygen are needed to completely react with 22.4L of Hydrogen to form water vapor at STP?
Identify the type of reaction: $AgNO_3(aq) + NaCl(aq) \rightarrow AgCl(s) + NaNO_3(aq)$.
Which of the following describes an exothermic reaction?
What is the precipitate formed when Ammonia solution is added to Ferric Chloride solution?
What is the value of the gas constant R in SI units?
Which of the following is the balanced equation for the reaction of Sodium with Water?
Which of the following substances is used to slow down the setting of cement (acting as a negative catalyst/inhibitor)?