General Science Chemistry MCQs

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

1. Dalton’s name is associated with which of the following terms?

[A] Electron
[B] Proton
[C] Atom
[D] Neutron

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2. The Alkali metals are called good reducing agents. This implies that__: 

[A] They easily capture electrons
[B] They are not stable at room temperature
[C] They easily lose electrons
[D] They don’t act with dilute acids

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3. Which of the following is also known as wood alcohol? 

[A] Methanol
[B] Ethanol
[C] Propanal
[D] Butanol

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4. Which among the following is popularly called Hypo? 

[A] Silver Bromide
[B] Silver nitrate
[C] Sodium thiosulphate
[D] Sodium phosphate

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5. Highest percentage of nitrogen is found in which among the following fertilizers among the given options? 

[A] Calcium ammonium nitrate
[B] Ammonium nitrate
[C] Calcium nitrate
[D] Urea

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6. Which among the following elements are generally find in free state? 

[A] Group 11 elements
[B] Group 12 elements
[C] Group 13 elements
[D] Group 14 elements

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7. Which among the following is an example of a Chemical Change?

[A] Rusting of iron
[B] Magnetisation of iron
[C] Melting of iron
[D] Heating of iron

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8. 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

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9. Which among the following gas was leaked at Bhopal during the Bhopal gas tragedy at 2-3 December 1984? 

[A] Methyl isocyanide
[B] Methyl isocyanate
[C] Methyl isochloride
[D] Methyl isochlorate

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10. Which among the following are constituents of Brass? 

[A] Zinc and Copper
[B] Iron and Zinc
[C] Copper and Nickel
[D] Iron and Copper

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