Welcome to a comprehensive set of General Science MCQs focusing on alloys, a vital aspect of metallurgy. Alloys play a crucial role in various industries and are frequently tested in competitive exams such as SSC, CGL, RRB NTPC, Railways, UPSC, and state-level exams.
This Chemistry MCQ series on alloys aims to sharpen your understanding and prepare you effectively for these examinations. Let’s dive into these General Science questions with answers to enhance your knowledge and ace your upcoming tests!
✅ Also Practice: Chemistry MCQ Asked in Previous Year’s WBCS Preliminary Exams [130 MCQs]
MCQ on Alloys Set-1
Q1. Which of the following elements are included in stainless steel? [Mizoram PSC (Pre) 2017, UPPSC (GIC) 2010, Chhattisgarh PCS (Pre) 2008]
[A] Chromium, Nickel and Iron
[B] Nickel, Iron and Carbon
[C] Iron, Chromium, Manganese and Carbon
[D] Iron, Zinc, Chromium and Carbon
Q2. Which pair of following is of Copper alloys? [Uttarakhand PCS (Pre) 2016]
[A] Brass and invar
[B] Bronze and Nichrome
[C] Brass and Bronze
[D] None of the above
Q3. What is mixed with iron to make stainless steel? [Uttarakhand PCS (Pre) 2005, RAS/RTS (Pre) 1996]
[A] Nickel and Copper
[B] Zinc and Tin
[C] Nickel and Tin
[D] Chromium and Nickel
Q4. How much carbon does steel contain? [Goa PSC (Pre) 2015, MPPCS (Pre) 2000]
[A] 0.1-2%
[B] 7-10%
[C] 10-50%
[D] Zero
Q5. Which one of the following elements is not present in the German Silver? [RAS/RTS (Pre) 2007]
[A] Copper
[B] Aluminum
[C] Zinc
[D] Nickel
Q6. Which metal exists as a common component in Brass, Bronze and German Silver? [UP Lower Sub. (Pre) 2002]
[A] Antimony
[B] Copper
[C] Tin
[D] Zinc
Q7. Galvanized iron is coated with [Karnataka PSC (Pre) 2019, Chhattisgarh PCS (Pre) 2011]
[A] Aluminium
[B] Galena
[C] Silver
[D] Zinc
Q8. Which one of the following alloys is called an amalgam? [UPPCS (Mains) 2012]
[A] Zinc – Copper
[B] Copper – Tin
[C] Mercury – Zinc
[D] Lead – Zinc
Q9. Solder used in soldering metal pieces consists of any alloy of [UPPCS (Pre) 2005, 1996]
[A] Tin and Zinc
[B] Tin and Lead
[C] Tin, Zinc and Copper
[D] Tin, Lead and Zinc
Q10. Percentage of Silver in German Silver is [UPPCS (Mains) 2003]
[A] 1%
[B] 5%
[C] 0%
[D] None of these
MCQ on Alloys Set-2
Q11. Which of the following alloys has a maximum percentage of Copper? [UP Lower (Spl)(Pre) 2008]
[A] Brass
[B] Bronze
[C] German Silver
[D] Gun Metal
Q12. In the case of rusting, the weight of iron [UPPCS (Mains) 2008, MPPCS (Pre) 1991]
[A] Increases
[B] Decreases
[C] Remains the same
[D] Uncertain
Q13. Alloy of which metal is used to make aeroplane and parts of the compartment of the train? [43rd BPSC (Pre) 1999]
[A] Copper
[B] Iron
[C] Aluminium
[D] None of these
Q14. Mercury metal mixture is [39th BPSC (Pre) 1994]
[A] High colour alloy
[B] Carbon mixed alloy
[C] Mercury mixed alloy
[D] Highly resisting alloy for malfriction
Q15. Which one of the following metals does not form amalgam? [IAS (Pre) 1998]
[A] Zinc
[B] Copper
[C] Magnesium
[D] Iron
Q16. Brass is a combination of what metals? [Chhattisgarh PCS (Pre) 2011, Uttarakhand PCS (Pre) 2002, UPPCS (Pre) 1993]
[A] Copper and Nickel
[B] Copper and Tin
[C] Copper and Zinc
[D] Copper + Zinc and Nickel
Q17. Check these statements.
1. Brass is an alloy of Copper and Zinc.
2. Magnetite is the main ore of Aluminium.
3. Mercurius Solubilis are that substance which mainly involves mercury.
4. Potassium Nitrate (KNO3) is a chemical used in photography.
Which of the above are true? [UP UDA/LDA (Pre) 2001]
Code
[A] 1 and 2
[B] 1 and 3
[C] 2 and 3
[D] 1, 3 and 4
Q18. Bronze is an alloy of [UPPCS (Pre)(Re. Exam) 2015]
[A] Copper and Tin
[B] Copper and Silver
[C] Copper and Zinc
[D] Copper and Lead
Q19. Bronze is an alloy of copper and [UPPCS (Mains) 2016]
[A] Tin
[B] Aluminium
[C] Silver
[D] Nickel
Q20. Brass gets fade colour in air due to the presence of [Jharkhand PCS (Pre) 2013]
[A] Oxygen
[B] Hydrogen sulphide
[C] Carbon dioxide
[D] Nitrogen
MCQ on Alloys Set-3
Q21. Combination of which substance in the alloy renders stainless steel non-magnetic? [Uttarakhand PCS (Pre) 2010]
[A] Carbon
[B] Chromium
[C] Nickel
[D] Molybdenum
Q22. The important metal used with iron produce stainless steel is [UPPCS (Pre) 2002]
[A] Aluminium
[B] Chromium
[C] Tin
[D] Carbon
Q23. To make the steel hard requires increase in [Karnataka PSC (Pre) 2019, 42nd BPSC (Pre) 1997]
[A] The quantity of Carbon
[B] The quantity of Manganese
[C] The quantity of Silicon
[D] The quantity of Chromium
Q24. Which of the following elements is added to iron to produce steel which can resist high temperature, have high hardness and abrasion resistance? [IAS (Pre) 1996]
[A] Aluminium
[B] Chromium
[C] Nickel
[D] Tungsten
Q25. The important metal used with iron to make it rust free [Punjab PSC (Pre) 2018, Chhattisgarh PCS (Pre) 2011]
[A] Aluminium
[B] Carbon
[C] Chromium
[D] Tin
Q26. Steel is further processed to obtain stainless steel by adding some element. Which one of the following is not used for this purpose? [UPPCS (Spl)(Mains) 2004]
[A] Carbon
[B] Silicon
[C] Manganese
[D] Nickel
Q27. Aluminium surface is often ‘Anodized’. This means the deposition of a layer of [IAS (Pre) 2000]
[A] Chromium Oxide
[B] Aluminium Oxide
[C] Nickel Oxide
[D] Zinc Oxide
Q28. Out of the following which is not an alloy? [Manipur PSC (Pre) 2018, MPPCS (Pre) 1998]
[A] Steel
[B] Brass
[C] Bronze
[D] Copper
Q29. Statement [A]: Galvanized iron does not rust. Statement (R): Zinc has the efficiency of oxidation. [Tripura PSC (Pre) 2019, UP Lower Sub. (Pre) 2002]
[A] Both [A] and (R) are true and (R) is the correct explanation of [A]
[B] Both [A] and (R) are true, but (R) is not the correct explanation of [A]
[C] [A] is true, but (R) is false
[D] [A] is false, but (R) is true
Q30. Match List-I with List-II and select the correct answer using the code given below the lists. [IAS (Pre) 2000]
List-I
[A] German silver
[B] Solder
[C] Bleaching powder
[D] Hypo
List-II
1. Tin
2. Nickel
3. Sodium
4. Chlorine
Code
[A] 1 2 4 3
[B] 2 1 3 4
[C] 1 2 3 4
[D] 2 1 4 3
Q31. The plates of galvanized iron remains protected from rust because the existence of [IAS (Pre) 1994]
[A] Lead
[B] Chromium
[C] Zinc
[D] Bung
Q32. Consider these statements and choose the right answer from counterfeit. Statement [A]: Normally it has been seen that iron goods covered with a brown powder called rust when they are unsheltered in the atmosphere. Statement (R): Rust or the brown powder is the result of deposition Tannin. [Sikkim PSC (Pre) 2019, UP Lower Sub. (Pre) 1998]
Code
[A] Both [A] and (R) are true and (R) is the correct explanation of [A]
[B] Both [A] and (R) are true, but (R) is not the correct explanation of [A]
[C] [A] is true, but (R) is false
[D] [A] is false, but (R) is true
