10,103 Questions

Question Bank

Search, filter, and explore every MCQ across all subjects and topics.

Showing 20 of 10103 questionsPage 207 of 506
ScienceHard
Chemistry
Chemical Reactions

Which factor increases the frequency of effective collisions according to Collision Theory?

View Question
ScienceHard
Chemistry
Chemical Reactions

What is the correct coefficient for H2O in the balanced equation: C3H8 + 5O2 -> 3CO2 + _H2O?

View Question
ScienceHard
Chemistry
Chemical Reactions

Which of the following is an example of an intramolecular redox reaction?

View Question
ScienceHard
Chemistry
Chemical Reactions

If the activation energy of a reaction is very high, the reaction will be:

View Question
ScienceHard
Chemistry
Chemical Reactions

What is the percentage by mass of Nitrogen in Urea [NH2CONH2]? (N=14, H=1, C=12, O=16)

View Question
ScienceHard
Chemistry
Chemical Reactions

The reaction between Silver Nitrate and Potassium Iodide is an example of:

View Question
ScienceHard
Chemistry
Chemical Reactions

What is the effect of increasing pressure on the equilibrium: N2 + 3H2 <=> 2NH3?

View Question
ScienceHard
Chemistry
Chemical Reactions

In the reaction 2FeCl2 + Cl2 -> 2FeCl3, Chlorine acts as:

View Question
ScienceHard
Chemistry
Chemical Reactions

What volume of CO2 is produced at STP when 10g of CaCO3 is heated? (Ca=40, C=12, O=16)

View Question
ScienceHard
Chemistry
Chemical Reactions

Identify the conjugate base of H2SO4.

View Question
ScienceHard
Chemistry
Chemical Reactions

Which of the following is a redox reaction?

View Question
ScienceHard
Chemistry
Chemical Reactions

What is the valency of Iron in Ferric Chloride?

View Question
ScienceHard
Chemistry
Chemical Reactions

What happens in a disproportionation reaction?

View Question
ScienceHard
Chemistry
Chemical Reactions

Which substance is a liquid catalyst?

View Question
ScienceHard
Chemistry
Chemical Reactions

How many molecules of water are present in 180g of water?

View Question
ScienceHard
Chemistry
Chemical Reactions

In an exothermic reaction, the enthalpy of products is:

View Question
ScienceHard
Chemistry
Chemical Reactions

What is the catalyst used in the hydrogenation of vegetable oils?

View Question
ScienceHard
Chemistry
Chemical Reactions

Which of the following is an example of an addition reaction?

View Question
ScienceHard
Chemistry
Chemical Reactions

What is the valency of the Nitrogen atom in the Ammonium ion (NH4+)?

View Question
ScienceHard
Chemistry
Chemical Reactions

During the electrolysis of water, the ratio of hydrogen to oxygen by volume is:

View Question