Chemistry MCQs

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

1. The term “white coal” sometimes referred to which of the following?
[A] Geothermal Electricity
[B] Wind Energy
[C] Hydroelectricity
[D] Biomass Energy

Show Answer

2. Which among the following are constituents of Brass?
[A] Zinc and Copper
[B] Iron and Zinc
[C] Copper and Nickel
[D] Iron and Copper

Show Answer

3. F block elements in the periodic table which are commonly called Lanthanides have the following atomic numbers:
[A] 57-70
[B] 57-71
[C] 58-71
[D] 58-70

Show Answer

4. Ekaboron was an element predicted by Mendeleev and he leaved a space for it in his Periodic Table. Later Ekaboron was identified with _____?
[A] Gallium
[B] Scandium
[C] Technitium
[D] Germanium

Show Answer

5. With reference to the Radioactivity, which among the following is called an isomeric transition?
[A] Alpha emission
[B] Gamma emission
[C] Beta emission
[D] X-Ray emission

Show Answer

6. Which of the following represents the general formula for alkanes?
[A] CnH2n
[B] CnH2n-2
[C] CnH2n+2
[D] CnHn

Show Answer

7. Which of the following material is used to make control rods in a nuclear reactor?
[A] Indium
[B] Boron
[C] Cadmium
[D] All of the above

Show Answer

8. Which of the following comprises a standard hydrogen electrode?
[A] a copper electrode coated with carbon black
[B] an iron electrode coated with platinum black
[C] a platinum electrode coated with platinum black
[D] a gold electrode coated with carbon black

Show Answer

9. Which of these laws state that limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the anion and cation of the electrolyte?
[A] Nernst Equation
[B] Kohlrausch law
[C] Afbau Principle
[D] Faraday’s law of electrolyte

Show Answer

10. Which of the following is true about an inert electrode?
[A] It does not participate in the chemical reaction
[B] It acts as a source or sink for electrons
[C] Both a and b
[D] None of the above

Show Answer

These questions are part of GKToday's 40,000+ GK Questions Course in GKToday Android Application which provides more than 40K questions with explanations suitable for all Competitive Exams of India.
Advertisement