Timed Challenge - Answer & Submit | GK Mania

1 What element has symbol Na?

A) Nitrogen

B) Sodium

C) Nickel

D) Neon

2 What is the formula for propane?

A) C₃H₈

B) C₄H₁₀

C) CH₄

D) C₂H₆

3 What is the most abundant gas in Earth's atmosphere?

A) Carbon dioxide

B) Oxygen

C) Nitrogen

D) Argon

4 What element makes steel stronger?

A) Gold

B) Copper

C) Silver

D) Carbon

5 What is a coordination compound?

A) compound with a

B) A binary compound

C) A pure element

D) A simple ionic salt

6 What is the difference between an exergonic and endergonic reaction?

A) They are the same

B) Exergonic absorbs energy

C) Exergonic releases free

D) Endergonic releases energy

7 What is the role of antioxidants?

A) Reducing alkalinity

B) Causing oxidation

C) Increasing acidity

D) Preventing oxidation

8 What acid is in your stomach?

A) Hydrochloric

B) Nitric

C) Acetic

D) Sulfuric

9 What is the main component of the Sun by mass?

A) Helium

B) Hydrogen

C) Oxygen

D) Carbon

10 What is the difference between climate and weather?

A) Climate changes daily

B) Weather is long-term

C) They are identical

D) Climate is the long-term

Quiz

1 What element has symbol Na?

2 What is the formula for propane?

3 What is the most abundant gas in Earth's atmosphere?

4 What element makes steel stronger?

5 What is a coordination compound?

6 What is the difference between an exergonic and endergonic reaction?

7 What is the role of antioxidants?

8 What acid is in your stomach?

9 What is the main component of the Sun by mass?

10 What is the difference between climate and weather?

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Quiz

1 What element has symbol Na?

2 What is the formula for propane?

3 What is the most abundant gas in Earth's atmosphere?

4 What element makes steel stronger?

5 What is a coordination compound?

6 What is the difference between an exergonic and endergonic reaction?

7 What is the role of antioxidants?

8 What acid is in your stomach?

9 What is the main component of the Sun by mass?

10 What is the difference between climate and weather?

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Quiz Results