Chemistry - MOST IMPORTANT UP PCS Previous Year Questions
Practice real questions from previous year exams of UP PCS.
📘 Polymer📚 Rayon
Q1
Which of the following pairs is NOT correctly matched?
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📘 Important Chemical Compounds📚 Gypsum
Q2
Which one of the following materials contains calcium?
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📘 Chemistry in Everyday Life📚 Medicines (Antacids, Analgesics, etc.)
Q3
Which one of the following is NOT correctly matched? (Substance / Use)
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📘 Separation of Mixtures📚 Misc
Q4
Which one of the following is NOT correctly matched?
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📘 Chemistry in Everyday Life📚 Pesticides and Insecticides
Q5
Which of the following is an example of herbicide?
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📘 Polymer📚 Types of polymers on basis of Structure- Natural, Semi-Synthetic, Synthetic
Q6
Match List-I with List-II and select the correct answer from the codes given below the lists:
List-I: A. Kevlar, B. Taxol, C. Zinc Phosphide, D. Nitrocellulose
List-II: 1. Explosive, 2. Synthetic fibre, 3. Anticancer drug, 4. Rodenticide
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📘 Phase Changing Processes and Their Factors📚 Sublimation
Q7
A sample of any of the following substances disappears after sometime when exposed to air like camphor, naphthalene or dry ice. This phenomenon is called
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📘 Discoveries📚 Misc
Q8
Arrange the following substances in chronological order of their first synthesis in lab: 1. Black gold, 2. Fullerene, 3. Graphene, 4. Kevlar.
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📘 Organic Chemistry📚 Misc
Q9
Which of the following pairs is NOT correctly matched? (Vitamin / Rich Source)
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📘 Organic Chemistry📚 Misc
Q10
Given below are two statements, one labelled as assertion (A) and the other as Reason (R).
Assertion (A): Most of the vitamins are not synthesised in human body.
Reason (R): Human organs synthesise only essential micronutrients.
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📘 Catalyst📚 General Facts and Properties
Q11
Which of the following statements about enzymes is/are correct?
1. They are biocatalysts.
2. They perform their action on the site where they are produced.
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📘 Chemistry in Everyday Life📚 Misc
Q12
Mother's milk provides almost complete diet to the new-born, but it lacks the following
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📘 Environmental Chemistry📚 Water Pollutants
Q13
With reference to Eutrophication, which of the following statements is/are correct?
1. It is a phenomenon of nutrient enrichment of a water body.
2. It depletes dissolved oxygen of the water.
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📘 Environmental Chemistry📚 Misc
Q14
The environment modified by human activities is called
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📘 Environmental Chemistry📚 Ozone Depletion
Q15
Which of the following is NOT correctly matched?
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📘 Environmental Chemistry📚 Air Pollutants
Q16
Smog is essentially caused by the atmospheric presence of
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📘 Polymer📚 General Facts
Q17
Which of the following polymer is NOT a thermoplastic?
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📘 Polymer📚 Types of polymers on basis of Structure- Natural, Semi-Synthetic, Synthetic
Q18
Which one of the following substances is NOT synthetic?
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📘 Chemistry in Everyday Life📚 Pesticides and Insecticides
Q19
Match List-I with List-II and select the correct answer using the codes given below the lists : List-I (Substance) A. Blue Vitriol B. Eosin C. Silver iodide D. Zinc phosphide. List-II (Use) 1. Artificial rain 2. Fungicide 3. Red ink 4. Rodenticide
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📘 Organic Chemistry📚 Misc
Q20
Given below are two statements, one is labelled as Assertion (A) other as Reason (R) :
Assertion (A): Invert sugar is more sweeter than sucrose.
Reason (R) : Invert sugar is obtained by the hydrolysis of sucrose.
Select the correct answer from the codes given below:
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