Chemistry Qualification related questions
What is the atomic number of carbon?
a) 6
b) 8
c) 12
d) 14
Answer: a) 6
What is the chemical symbol for gold?
a) Au
b) Ag
c) Pt
d) Hg
Answer: a) Au
Which of the following is a noble gas?
a) Oxygen
b) Nitrogen
c) Helium
d) Hydrogen
Answer: c) Helium
What is the pH value of a neutral solution?
a) 0
b) 7
c) 14
d) 1
Answer: b) 7
Which element is a halogen?
a) Sodium
b) Chlorine
c) Calcium
d) Iron
Answer: b) Chlorine
What is the chemical formula for water?
a) H2O2
b) CO2
c) H2O
d) CH4
Answer: c) H2O
What is the process of converting a solid directly into a gas called?
a) Sublimation
b) Condensation
c) Vaporization
d) Evaporation
Answer: a) Sublimation
Which of the following is a greenhouse gas?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Argon
Answer: c) Carbon dioxide
What is the chemical name of baking soda?
a) Sodium chloride
b) Sodium bicarbonate
c) Sodium hydroxide
d) Sodium carbonate
Answer: b) Sodium bicarbonate
Which of the following is a transition metal?
a) Zinc
b) Calcium
c) Sodium
d) Iron
Answer: d) Iron
What is the formula for sulfuric acid?
a) HCl
b) H2SO4
c) HNO3
d) NaOH
Answer: b) H2SO4
What is the chemical formula for methane?
a) CH3OH
b) CH4
c) CO2
d) C6H12O6
Answer: b) CH4
What is the unit of measurement for electric current?
a) Ampere
b) Volt
c) Ohm
d) Watt
Answer: a) Ampere
What is the process of converting a gas into a liquid called?
a) Sublimation
b) Condensation
c) Vaporization
d) Evaporation
Answer: b) Condensation
Which gas is most abundant in Earth’s atmosphere?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Argon
Answer: b) Nitrogen
What is the chemical symbol for potassium?
a) K
b) P
c) Ka
d) Ko
Answer: a) K
Which of the following is a non-metal?
a) Sodium
b) Calcium
c) Chlorine
d) Iron
Answer: c) Chlorine
What is the formula for sodium chloride?
a) NaCl
b) NaOH
c) HCl
d) Na2CO3
Answer: a) NaCl
What is the process of a substance absorbing moisture from the air and becoming hydrated called?
a) Efflorescence
b) Hygroscopy
c) Deliquescence
d) Desiccation
Answer: c) Deliquescence
Which of the following is a primary color in subtractive color mixing?
a) Red
b) Yellow
c) Green
d) Cyan
Answer: d) Cyan
What is the formula for glucose?
a) C6H12O6
b) CH4
c) H2SO4
d) NaCl
Answer: a) C6H12O6
Which of the following is a noble gas?
a) Neon
b) Nitrogen
c) Sodium
d) Nickel
Answer: a) Neon
What is the chemical formula for hydrogen peroxide?
a) H2O2
b) CO2
c) HCl
d) NaOH
Answer: a) H2O2
What is the process of a substance losing water molecules called?
a) Efflorescence
b) Hygroscopy
c) Deliquescence
d) Desiccation
Answer: a) Efflorescence
What is the chemical name for table salt?
a) Sodium chloride
b) Sodium bicarbonate
c) Sodium hydroxide
d) Sodium carbonate
Answer: a) Sodium chloride
What is the formula for sulfur dioxide?
a) SO2
b) H2SO4
c) HCl
d) CO2
Answer: a) SO2
Which of the following is a greenhouse gas?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Argon
Answer: c) Carbon dioxide
What is the chemical symbol for iron?
a) Fe
b) Ir
c) In
d) Io
Answer: a) Fe
Which gas is commonly known as laughing gas?
a) Carbon dioxide
b) Nitrogen
c) Oxygen
d) Nitrous oxide
Answer: d) Nitrous oxide
What is the chemical formula for ammonia?
a) NH3
b) H2SO4
c) NaCl
d) CO2
Answer: a) NH3
Which of the following is a transition metal?
a) Zinc
b) Calcium
c) Sodium
d) Iron
Answer: d) Iron
What is the process of converting a liquid into a gas called?
a) Sublimation
b) Condensation
c) Vaporization
d) Evaporation
Answer: c) Vaporization
What is the chemical symbol for silver?
a) Si
b) Sv
c) Sn
d) Ag
Answer: d) Ag
Which of the following is a base?
a) HCl
b) NaOH
c) H2SO4
d) HNO3
Answer: b) NaOH
What is the formula for calcium carbonate?
a) CaCO3
b) CaCl2
c) CaSO4
d) CaO
Answer: a) CaCO3
What is the chemical symbol for mercury?
a) Hg
b) He
c) Me
d) Mr
Answer: a) Hg
Which of the following is a non-metal?
a) Sodium
b) Calcium
c) Chlorine
d) Iron
Answer: c) Chlorine
What is the chemical formula for hydrogen chloride?
a) HCl
b) H2SO4
c) NaOH
d) NH3
Answer: a) HClWhat is the chemical formula for hydrochloric acid?
a) HCl
b) H2SO4
c) NaOH
d) NH3
Answer: a) HCl
What is the process of a substance converting directly from a solid to a gas without passing through the liquid phase called?
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization
Answer: b) Sublimation
Which of the following is a strong acid?
a) Acetic acid
b) Citric acid
c) Hydrochloric acid
d) Carbonic acid
Answer: c) Hydrochloric acid
What is the chemical symbol for sodium?
a) So
b) Na
c) Sd
d) No
Answer: b) Na
Which of the following is a halide ion?
a) OH-
b) H+
c) Cl-
d) Na+
Answer: c) Cl-
What is the term for a substance that speeds up a chemical reaction without being consumed in the process?
a) Reactant
b) Catalyst
c) Product
d) Inhibitor
Answer: b) Catalyst
What is the chemical formula for carbon dioxide?
a) CO
b) CO2
c) C2O
d) C3O2
Answer: b) CO2
Which of the following is a property of acids?
a) Turns blue litmus paper red
b) Bitter taste
c) Slippery feel
d) Releases hydroxide ions in water
Answer: a) Turns blue litmus paper red
What is the chemical formula for nitric acid?
a) HCl
b) HNO3
c) H2SO4
d) NaOH
Answer: b) HNO3
Which of the following is a characteristic of bases?
a) Sour taste
b) Release of hydrogen ions in water
c) Turns red litmus paper blue
d) Low pH
Answer: c) Turns red litmus paper blue
What is the term for the number of protons in an atom’s nucleus?
a) Atomic mass
b) Atomic number
c) Isotope number
d) Valence number
Answer: b) Atomic number
What is the chemical symbol for oxygen?
a) O
b) Ox
c) Oz
d) On
Answer: a) O
Which of the following is a characteristic of alkalis?
a) Sour taste
b) Release of hydrogen ions in water
c) Turns red litmus paper blue
d) High pH
Answer: d) High pH
What is the chemical formula for sulfuric acid?
a) H2SO4
b) HCl
c) HNO3
d) NaOH
Answer: a) H2SO4
Which of the following is a property of noble gases?
a) Highly reactive
b) Found in group 17 of the periodic table
c) Unreactive under normal conditions
d) Form strong acids
Answer: c) Unreactive under normal conditions
What is the chemical symbol for helium?
a) He
b) Hl
c) Hm
d) Hn
Answer: a) He
Which of the following is a characteristic of metals?
a) Poor conductors of electricity
b) Brittle in solid form
c) Form cations in chemical reactions
d) Low melting and boiling points
Answer: c) Form cations in chemical reactions