CHEMISTRY QUIZ

Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?

• Slightly acidic

• Neutral

• Milk does not have a ph

• Slightly basic

Noble gases are inert and also known as monoatomic gases because they have completed outer electron shells. Which of these elements isn't a noble gas ?

• Helium

• Chlorine

• Neon

• Kryton

The modern atomic mass unit is based on

(a)  

We can't live without water! What is it's chemical formula?

• H2

• H20

• H202

• H3O

What is the velocity of light in m/s ?

• 5 x 10⁸ m/s.

• 3 x 10⁸ m/s.

What of these metals are non metal ?

• Lithium

• Magnesium

• Beryllium

• Sulfur

Organic chemistry is the study of the compounds that make up living organisms. All organic molecules contain :

• Carbon and oxygen

• carbon,hydrogen, nitrogen and oxygen

• Carbon and hydrogen

• Nitrogen and oxygen

The symbol Ag stands for :

• Manganese

• Silver

• Magnesium

• Helium

The symbol Hg stands for :

• Mercury

• Rhodium

• Iridium

• Platinum

The symbol Au stands for :

• Gold

• Cadmium

• Zinc

• Krypton