Quiz for Chemistry

Q1: What is the atomic number of Hydrogen?

A. 1 B. 2 C. 3 D. 4

Q2: Water is a compound of?

A. Hydrogen and Oxygen B. Hydrogen and Nitrogen C. Oxygen and Nitrogen D. Hydrogen and Carbon

Q3: What is the chemical formula of table salt?

A. NaCl B. KCl C. CaCl2 D. MgCl2

Q4: Which gas is released when an acid reacts with a metal?

A. Hydrogen B. Oxygen C. Carbon dioxide D. Nitrogen

Q5: What is the pH value of pure water?

A. 7 B. 0 C. 14 D. 1

Q6: What is the chemical symbol for Iron?

A. Fe B. Ir C. In D. I

Q7: Which element is used in making thermometers?

A. Mercury B. Lead C. Copper D. Aluminium

Q8: What is the main gas responsible for global warming?

A. Carbon dioxide B. Oxygen C. Nitrogen D. Hydrogen

Q9: Which acid is found in stomach?

A. Hydrochloric acid B. Sulfuric acid C. Nitric acid D. Acetic acid

Q10: What is the common name of Sodium bicarbonate?

A. Baking soda B. Baking powder C. Washing soda D. Caustic soda

Q11: What is rust chemically?

A. Iron oxide B. Copper oxide C. Aluminium oxide D. Zinc oxide

Q12: What is the chemical formula of methane?

A. CH4 B. C2H6 C. CO2 D. C2H4

Q13: Which element is used in making balloons?

A. Helium B. Hydrogen C. Oxygen D. Nitrogen

Q14: What is the molecular weight of water?

A. 18 B. 20 C. 16 D. 22

Q15: Which gas is commonly known as laughing gas?

A. Nitrous oxide B. Nitrogen C. Oxygen D. Carbon monoxide

Q16: What is the boiling point of water at sea level?

A. 100°C B. 90°C C. 80°C D. 110°C

Q17: What is the valency of Oxygen?

A. 2 B. 1 C. 3 D. 4

Q18: What type of bond is formed between sodium and chlorine in table salt?

A. Ionic bond B. Covalent bond C. Metallic bond D. Hydrogen bond