Choose the correct options regarding a catalyst :
Correct answer: C. It shortens the time to reach equilibrium.
- A. It increases the equilibrium concentration of the products
- B. It is a substance which change the equilibrium constant of the reacting ion.
- C. It shortens the time to reach equilibrium.
- D. It supplies energy to the reaction.
Explanation
A catalyst is substance that increases rate of reaction and it shortens the to reach equilibrium.
Last updated
About Solutions and Colloids
Solutions are described using molarity, molality, normality, mole fraction, percentage concentration and parts per million. Coverage also includes vapour-pressure lowering, boiling-point elevation, freezing-point depression and osmotic pressure, then distinguishes true solutions, colloids and suspensions by particle size, stability, light scattering and settling.
Practise Solutions and Colloids
119 free Solutions and Colloids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
The osmotic pressure of equimolar solutions of BaCl2, NaCl and sucrose will be in the order:
Consider NaCl produced in the equation: FeCl3+ NaOH → Fe(OH)3 + NaCl 175.5g of NaCl was dissolved in water to make a liter of solution, the molarity would be:
An azeotropic mixture of two liquids has a boiling point higher than either of them when it:
The number of moles of solute dissolved per liter of solution is called:
From a mixture of CO2 and H2 gases, CO2 can be separated by passing the mixture through: