Chem Practical Quiz

How would you record the following in seconds?

Add aq NaOH slowly till no further change is observed. ‘No further change’ means to

When an acid is added to a solid that is shiny and grey, if effervescence is produced, what gas should we test for?

When an acid to added to a powdery solid and an effervescence is formed. What is the first gas you should test for?

When an acid is added to an unknown solution and effervescence is seen. What is the first gas you should test for?

If there is no ppt is formed when aq NaOH is added in excess, what should you do next?

The following observations are recorded when aq ammonia is added slowly until no further change. What can be deduced?

How would you record the following liquid in the burette?

Acidified aqueous barium nitrate is used to test for sulfate ions.

Which of the following has to be included when writing evidence to support your conclusion in QA?

What is the correct step to turn on Bunsen Burner?

How would you record the following liquid in a measuring cylinder?

Plot a graph of volume of gas produced against time. Which of the following is correct?

Which of the following is not a suggested scale to draw for values between 0 to 50 cm³?

Graph drawn must occupy at least ______ % of the graph paper provided.

What is the duration and marks allocated for the Practical Paper?

What should be carried before starting Titration experiment?

What is the purpose of adding indicator into the conical flask during Titration?

How would you record the reading on the thermometer shown?

Which of the following is not an example of source of error?

How do you calculate concentration in mol/dm³?

How would the titration results be affected if there are bubbles in the pipette?

An experiment is conducted to study the effect of concentration of acid on the speed of reaction with Mg. Which is true?