Chemistry MCQs

Chemistry Objective (Multiple Choice) General Knowledge Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examination.

1. Which among the following is the objective of the Methyl tert-butyl ether (MTBE) mixing with Petroleum? 
[A] Raise Octane Number
[B] Antioxidant Stabilizer
[C] Lead Scavanger
[D] Fuel Dye

Show Answer

2. Which among the following gases is used in production of Vanaspati ghee from vegetable oils?
[A] Nitrogen (N2)
[B] Carbon Dioxide (CO2)
[C] Hydrogen (H2)
[D] Neon (Ne)

Show Answer

3. Which colour does cobalt oxide impart to glass?
[A] Brown
[B] Blue
[C] Red
[D] Yellow

Show Answer

4. The Helium atoms that have lost two electrons are called ________?
[A] Alpha rays
[B] Beta rays
[C] Gamma rays
[D] None of the above

Show Answer

5. Which among the following is the main constituent of vegetable oil and animal fats?
[A] Glycogen
[B] Triglyceride
[C] Galactose
[D] Diglyceride

Show Answer

6. Which among the following is Fool’s Gold?
[A] Copper Sulphate
[B] Iron Sulfide
[C] Brass
[D] Silver Bromide

Show Answer

7. Haber Process is used to produce which among the following?
[A] Potash
[B] Ammonia
[C] Urea
[D] Nitrates

Show Answer

8. What do we call the compounds of carbon having double or triple bonds between the carbon atoms?
[A] Saturated carbon compounds
[B] Unsaturated carbon compounds
[C] Fullerenes
[D] None of the above

Show Answer

9. Which of the following is incorrect?
[A] Alloying helps in improving the properties of a metal
[B] An alloy is a heterogeneous mixture of two or more metals
[C] The melting point of an alloy is less than that of pure metals
[D] All of the above

Show Answer

10. Which of the following defines the solubility of a solution?
[A] amount of the solvent present in the saturated solution
[B] amount of the solute present in the saturated solution
[C] amount of the solute per amount of solute in the solution
[D] difference of amount of solvent and the amount of solute

Show Answer