Chemistry Final Exam Sem. 1 P(3) Dec. 2024

Front

What is the purpose of a dropper in volumetric analysis?

Back

A dropper is used to add small amounts of liquid precisely, especially when reaching a specific volume in a volumetric flask.

Front

What is the formula for the ionic compound formed between sodium and chlorine?

Back

NaCl

Front

What is the name of the compound CuBr₂?

Back

Copper (II) bromide

Front

In what order should a wash bottle be used to clean laboratory equipment?

Back

Glass rod, beaker, funnel.

Front

What tool is used to transfer a solution from a beaker to a volumetric flask?

Back

Funnel

Front

Define ionic bonding.

Back

Ionic bonding is the electrostatic attraction between oppositely charged ions, typically formed when electrons are transferred from one atom to another.

Front

What is the significance of the oxidation state in naming compounds?

Back

The oxidation state indicates the charge of an ion and is crucial for naming compounds correctly, especially for transition metals.

Front

Explain the difference between a beaker and a volumetric flask.

Back

A beaker is a simple container for stirring, mixing, and heating liquids, while a volumetric flask is designed for precise dilutions and preparation of standard solutions.

Front

What is the role of a funnel in laboratory procedures?

Back

A funnel is used to channel liquids or fine-grained substances into containers with a small opening.

Front

What is the importance of using a wash bottle in a laboratory?

Back

A wash bottle is used to rinse laboratory glassware and equipment, ensuring that residues are removed and preventing contamination.