Chemistry - MOST IMPORTANT UPPSC ACF/RFO Previous Year Questions
Practice real questions from previous year exams of UPPSC ACF/RFO.
📘 Carbon Allotropes📚 Carbon Allotrope (Crystalline)
Q1
Which one among the following is used in making lead pencils?
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📘 Carbon Allotropes📚 Carbon Allotrope (Amorphous)
Q2
Which of the following black materials has maximum carbon content?
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📘 Organic Chemistry📚 Hydrocarbons
Q3
Which among the following substance is called ‘Liquid Gold’?
🎯 UPPSC ACF/RFO Exam. 2015
📘 Chemistry in Everyday Life📚 Artificial Sweeteners
Q4
Which of the following substance is sweetest?
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📘 Acids, Bases and Salts📚 Name of Acid present in compounds
Q5
Match list–I with list–II and select the correct answer using the code given below the Lists:
List I
A. Lactic acid
B. Acetic acid
C. Citric acid
D. Butyric acid
List II
1. Lemon
2. Rancid butter
3. Milk
4. Vinegar
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📘 Acids, Bases and Salts📚 Name of Acid present in compounds
Q6
Match list –I with list – II and select the correct answer using the code given below the Lists:
List I
A. Acetic acid
B. Citric acid
C. Lactic acid
D. Formic acid
List II
1. Sting of ant
2. Curdling of milk
3. Vinegar
4. Orange
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📘 Acids, Bases and Salts📚 pH Scale
Q7
pH value of a basic solution is always-
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📘 Important Chemical Compounds📚 Baking Soda
Q8
Which one of the following is the chemical name for baking soda?
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📘 Important Chemical Compounds📚 Misc
Q9
Which of the following compound is called ‘Chinese White’?
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📘 Important Chemical Compounds📚 Plaster of Paris
Q10
Which of the following pair is not correctly matched?
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📘 Chemistry in Everyday Life📚 Pesticides and Insecticides
Q11
Blue vitriol is used as a-
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📘 Pure Substance- Element-Classification of Matter on the basis of Chemical Properties- II📚 Metalloids
Q12
Which one of the following elements does not occur in a free state in nature?
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📘 Classification of Elements in Modern Periodic Table📚 p-block
Q13
Which one of the following Noble gas is not present in the air?
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📘 Metallurgy📚 Alloys and Their compositions
Q14
German silver is an alloy of
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📘 Metallurgy📚 Alloys and Their compositions
Q15
Brass is alloy of
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📘 Chemistry in Everyday Life📚 Pesticides and Insecticides
Q16
Which of the following compound is called as gammaxene?
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📘 Chemistry in Everyday Life📚 Fertilizers
Q17
Continuous use of urea makes the soil:
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📘 Chemistry in Everyday Life📚 Misc
Q18
‘2 minute maggi noodles’ was banned in India due to found positive in which of the following test?
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📘 General Miscellaneous📚 Miscellaneous
Q19
Match List-I with List-II and select the correct answer: List-I: A. Atomic clock, B. Carbon dating, C. Half life time, D. Sun clock]. List-II: 1. Age of rocks, 2. Accurate time, 3. Radioactivity, 4. Old method of time measuring].
🎯 UPPSC ACF/RFO (Mains) 2020