General Knowledge Question Answer: Chemistry GK Questions and Answers

General Knowledge Chemistry Questions, Chemistry Quiz for Competitive Exams, Important Chemistry MCQs for GK

Q. Which of the following is the Chemical name of the salt we use in our kitchen?
1) Sodium Chloride
2) Ammonium Sulphate
3) Sodium Carbonate
4) Calcium Chloride

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Q. Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission?
1) Uranium
2) Plutonium
3) Boron
4) Heavy water

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Q. Glycol is added to aviation gasoline because it
1) prevents freezing of petrol
2) reduces consumption of petrol
3) reduces evaporation of petrol
4) increase efficiency of petrol

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Q. Sodium thiosulfate (Na2S2O3) solution is used in photography to
1) remove undecomposed AgBr as a soluble silver thiosulfate complex
2) remove reduced silver
3) reduce silver bromide (AgBr) grain to silver
4) convert the metallic silver to silver salt

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Q. Which of the following substance is not used in the alloy of stainless steel?
1) Carbon
2) Chromium
3) Manganese
4) Molybdenum

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Q. Which of the following is not a chemical fertilizer?
1) Urea
2) Sodium sulphate
3) Super phosphate
4) Potassium nitrate

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Q. The venom of Cobra is -
1) Neurotoxic
2) Haemotoxic
3) Both (A) and (B)
4) None of the above

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Q. Which gas is filled in refrigerators?
1) Acetylene
2) Methane
3) Mafron
4) Chlorofluorocarbon

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Q. Which of the following is the best conductor of electricity ?
1) Saline water
2) Warm water
3) Cold water
4) Distilled water

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Q. Which one of the following is used as a moderator in a nuclear reactor?
1) Radium
2) Ordinary water
3) Thorium
4) Heavy water

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