Chemistry: General Knowledge Questions and Answers

Q81. Which acid is produced when milk gets sour?

[A] Acetic acid

[B] Lactic acid

[C] Butyric acid

[D] Tartaric acid

Q82. In nuclear reactors, which of the following is used as moderator?

[A] Graphite

[B] Uranium

[C] Platinum

[D] Iron

Q83. Which of the following can be used as a catalyst in Hydrogenation reaction?

[A] Iron

[B] Palladium

[C] Barium

[D] Tungsten

Q84. What are long chains of Carbon Molecules called?

[A] Hydrocarbons

[B] Polymers

[C] Ribosomes

[D] None

450+ Chemistry Quiz Questions and Answers

Q85. __________ extinguishes fire.

[A] co2

[B] No2

[C] So2

[D] o2

Q86. Choose the pure substance from the list below.

[A] Lemonade

[B] Sea water

[C] Sugar

[D] Air

Q87. The particle with 13 protons and 10 electrons is

[A] Al3+ ion

[B] nitrogen isotope

[C] Al -atom

[D] None of these

Q88. Which bond has the greatest ionic character?

[A] H-O

[B] H-N

[C] H-Cl

[D] H-F

Q89. The metal which reacts most violently with with cold water is

[A] sodium

[B] calcium

[C] potassium

[D] magnesium

Q90. Most commonly used bleaching agent is

[A] Carbon dioxide

[B] Chlorine

[C] Sodium Chloride

[D] Alcohol