Take the Quiz - Timed General Knowledge Challenge | GK Mania

1 What type of mixture has uniform composition throughout?

A) Homogeneous

B) Heterogeneous mixture

C) Colloid

D) Suspension

2 What element is liquid at room temperature besides mercury?

A) Chlorine

B) Iodine

C) Bromine

D) Fluorine

3 What is the photoelectric effect's key finding?

A) Light below a certain frequency

B) Any light ejects electrons

C) Brighter light always works

D) Heat causes electron emission

4 What gas causes global warming mainly?

A) Oxygen

B) Helium

C) Nitrogen

D) Carbon

5 What does a seismograph measure?

A) Wind speed

B) Air pressure

C) Humidity

D) Earthquake

6 What metal is the best conductor of electricity?

A) Gold

B) Copper

C) Silver

D) Aluminum

7 What is stainless steel made from?

A) Iron + copper

B) Iron + gold

C) Iron + chromium

D) Iron + silver

8 What is the formula for carbon monoxide?

A) CO₂

B) CO

C) C₂O

D) CH₄

9 What is salt's chemical formula?

A) NaOH

B) CaCl₂

C) KCl

D) NaCl

10 What is the process of combining hydrogen and oxygen to form water called?

A) Single replacement

B) Synthesis reaction

C) Double replacement

D) Decomposition reaction

11 What is the difference between a homogeneous and heterogeneous catalyst?

A) Homogeneous is in the same phase

B) Homogeneous is always solid

C) They are identical

D) Heterogeneous is always liquid

12 What happens during evaporation?

A) Gas becomes solid

B) Gas becomes liquid

C) Liquid becomes gas

D) Solid becomes liquid

13 What is the formula for glucose?

A) CH₄

B) NaCl

C) C₆H₁₂O₆

D) C₂H₅OH

14 What is the primary function of the lungs?

A) Pumping blood

B) Gas exchange

C) Digesting food

D) Filtering toxins

15 What is a mutual fund?

A) A single stock investment

B) pooled investment vehicle managed

C) A personal checking account

D) A government savings bond

Quiz