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 are constituents of Brass?
[A] Zinc and Copper
[B] Iron and Zinc
[C] Copper and Nickel
[D] Iron and Copper

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2. Which among following is also known as white gold?
[A] Nickel

[B] Rhodium
[C] Platinum
[D] Palladium

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3. 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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4. Which among the following is the most important characteristic of Noble metals?
[A] Luster
[B] Non reactive nature
[C] Preciousness
[D] Rare availability

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5. Which of the following is the softest metal?
[A] Cesium
[B] Lead
[C] Gold
[D] Silver

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6. Which of the following chemicals is also known as "Vitriol of clay”?
[A] Aluminium sulphate
[B] Sodium silicate
[C] Zinc sulphate
[D] Copper(II) sulphate

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7. What do we call the compounds having identical molecular formula but different structures?
[A] Functional isomers
[B] Structural isomers
[C] Mirror isomers
[D] Branched isomers

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8. Which of these industrial processes is used for production of aluminium from alumina?
[A] Vunyukov process
[B] Hall–Heroult process
[C] Betts process
[D] None of the above

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9. Which of the following is true about Rutherford model of atom?
[A] it explains how the electrons are distributed around the nucleus
[B] It cannot explain about the stability of an atom around the nucleus
[C] It tells us about the energies of the electrons around the nucleus
[D] All of the above

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10. Which of the following elements is identified by the 7th group and 4th period of the modern periodic table?
[A] Copper
[B] Iron
[C] Manganese
[D] Chromium

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