📘 Chemistry in Everyday Life📚 Common Gases used in daily life (LPG, CNG, etc.)

Q1

Which of the following gases is commonly filled in electric bulbs?

🎯 UPSSSC Lower PCS Mains 21/10/2021 Paper-II

📘 Physical States of Matter and Their properties📚 Gas

Q2

Which state of matter has the minimum density?

🎯 UPSSSC Lower PCS Mains 21/10/2021 Paper-II

📘 Structure of Atom📚 Misc

Q3

What is the force binding the proton and neutron in a nucleus called?

🎯 UPSSSC Lower PCS Exam - 30-09-2019 (Shift-I)

📘 Structure of Atom📚 Isotopes

Q4

Protium, Deuterium and Tritium are kept in which of the following categories?

🎯 UPSSSC Lower PCS Exam - 30-09-2019 (Shift-I)

📘 Structure of Atom📚 Electron

Q5

Who is credited with the discovery of the Electron?

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📘 Structure of Atom📚 Neutron

Q6

Who discovered the Neutron (a particle that is part of the nucleus of an atom)?

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📘 Organic Chemistry📚 Hydrocarbons

Q7

Which of the following gases is used for the untimely ripening of fruits?

🎯 UPSSSC Lower PCS Mains 21/10/2021 Paper-II

📘 Organic Chemistry📚 Hydrocarbons

Q8

Which of the following gases is generally the cause of explosion in coal mines?

🎯 UPSSSC Lower PCS Mains 21/10/2021 Paper-II

📘 Physical States of Matter and Their properties📚 Gas

Q9

Which of the following statements is true regarding gases?

🎯 UPSSSC Lower PCS II (Re-exam) (28-07-2019)

📘 Electrochemistry📚 Electrochemical Cells (Galvanic/Voltaic Cells)

Q10

The cathode used in a dry cell is?

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📘 Electrochemistry📚 Electrolytes and Non-electrolytes

Q11

Due to the flow of which of the following does an electrolyte pass electric current?

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📘 Acids, Bases and Salts📚 Types of Indicators- Natural, Synthetic and Olfactory Indicators

Q12

At which pH value limit does Methyl Orange indicator change its color?

🎯 UPSSSC Lower PCS Exam - 01-10-2019 (Shift-I)

📘 Acids, Bases and Salts📚 pH Scale

Q13

Which of the following values represents the pH of a basic solution?

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📘 Important Chemical Compounds📚 Misc

Q14

What is the industrial name of Epsom?

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📘 Pure Substance- Element-Classification of Matter on the basis of Chemical Properties- II📚 Non-metals and its properties

Q15

Which of the following has the highest calorific value?

🎯 UPSSSC Lower PCS First- 28-02-2016

📘 Laws of Chemical Combinations📚 Laws of Definite Proportions

Q16

What is the ratio of hydrogen and oxygen by mass in water?

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📘 Chemical Reactions📚 Combustion Reaction

Q17

Which of the following gases is necessary for combustion?

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📘 Discoveries📚 Misc

Q18

Who discovered oxygen?

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📘 Pure Substance- Compound-Classification of Matter on the basis of Chemical Properties- II📚 Inorganic Compound

Q19

Laughing gas is a compound of which of the following?

🎯 UPSSSC Lower PCS II (Re-exam) (28-07-2019)

📘 Pure Substance- Compound-Classification of Matter on the basis of Chemical Properties- II📚 Inorganic Compound

Q20

What is 'laughing gas'?

🎯 UPSSSC Lower PCS Third - 26-06-2016

Chemistry - MOST IMPORTANT UPSSSC Lower PCS Previous Year Questions