Science Questions
All Science MCQs for CTEVT entrance exam.
What is the oxidation state of Nitrogen in Ammonia ($NH_3$)?
Which of the following is a balanced equation for the reaction of Aluminum with Chlorine?
In the reaction $H_2S + I_2 \rightarrow 2HI + S$, identify the substance that is reduced.
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?