Nessler's Test Quiz

What is the primary purpose of Nessler's test?

• To measure the pH level of a solution

• To detect the presence of ammonia and ammonium salts

• To identify the presence of heavy metals

• To determine the boiling point of a liquid

What is the chemical formula of Nessler's reagent?

• K2HgI4

• NaCl

• C6H12O6

• H2O

What color change indicates the presence of ammonia or ammonium in Nessler's test?

• Blue to green

• Red to pink

• Yellow to dirty brown

• Colorless to purple

Which of the following is NOT required to perform Nessler's test?

• Nessler's reagent

• Bunsen burner

• Ammonia-free distilled water

• Test tube holder

What is the role of the control sample in Nessler's test?

• To enhance the color change

• To provide a comparison for detecting color change

• To neutralize the solution

• To increase the reaction speed