Science Questions
All Science MCQs for CTEVT entrance exam.
Which of the following is an example of a photochemical reaction?
The reaction $BaCl_2 + Na_2SO_4 \rightarrow BaSO_4 + 2NaCl$ is an example of:
What happens to the oxidizing agent in a redox reaction?
If a piece of magnesium is placed in a solution of Zinc Sulfate, what will happen?
Which of these is the correct balanced equation for the decomposition of Potassium Chlorate?
In the reaction $MnO_2 + 4HCl \rightarrow MnCl_2 + 2H_2O + Cl_2$, which substance is oxidized?
Why is food cooked faster in a pressure cooker?
Which of the following will have the fastest reaction rate with 1M HCl?
What is the identity of the 'reducing agent' in the reaction: $2Al + 3Fe^{2+} \rightarrow 2Al^{3+} + 3Fe$?
Which of the following reactions is used to test for Carbon Dioxide gas?
A catalyst that slows down the rate of a reaction is known as a/an:
What is the number of moles of CO2 produced when 1 mole of CaCO3 is decomposed by heat?
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?