MPSC PYQ

Oxidizing agents

Oxidizing agents is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2013, 2020). Below are those real questions with their correct answers and explanations.

Real questions
2
Years tested
2 · 2013–2020
In context
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Real questions that test this

खालीलपैकी कोणत्या रासायनिक अभिक्रिया ऑक्सिडिकरण-क्षपण या प्रकारात मोडतात ? (a) 2Mg + O2 → 2MgO (b) MnO2 + 4HCl → MnCl2 + 2H2O + Cl2 (c) 2Na + Cl2 → 2NaCl (d) 2NaBr + H2O2 → 2NaOH + Br2 Which of the following are Oxidation-reduction reactions ? (a) 2Mg + O2 → 2MgO (b) MnO2 + 4HCl → MnCl2 + 2H2O + Cl2 (c) 2Na + Cl2 → 2NaCl (d) 2NaBr + H2O2 → 2NaOH + Br2

(a)2Mg + O2 → 2MgO

(b)MnO2 + 4HCl → MnCl2 + 2H2O + Cl2

(c)2Na + Cl2 → 2NaCl

(d)2NaBr + H2O2 → 2NaOH + Br2

1)फक्त (a), (d) / Only (a), (d)
2)फक्त (b), (c) / Only (b), (c)
3)फक्त (a), (b) / Only (a), (b)
4)वरील सर्व / All of the above✓ Correct

All given chemical reactions involve simultaneous oxidation and reduction (redox reactions) where electrons or oxygen/hydrogen are transferred.

गन पावडर हे एक मिश्रण आहे जे पेटविल्यास रासायनिक प्रक्रिया होऊन स्फोट होतो. या मिश्रणात पुढील बाबी असतात : (a) पोटॅशियम नायट्रेट (b) कोळशाची पावडर (c) सल्फर (d) सोडिअम कार्बोनेट (e) कॅल्शिअम सल्फेट

(a)पोटॅशियम नायट्रेट

(b)कोळशाची पावडर

(c)सल्फर

(d)सोडिअम कार्बोनेट

(e)कॅल्शिअम सल्फेट

1)(a), (b), (c)✓ Correct
2)(b), (c), (d)
3)(a), (b), (e)
4)(a), (c), (d)

Gunpowder is a traditional explosive mixture composed of potassium nitrate (saltpeter, acting as oxidizer), charcoal (fuel), and sulfur (fuel and low ignition point).

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