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

Q1

Select the gas which is stored in fire extinguishers?

🎯 DSSSB PRT 25-03-2022 (Shift-III)

📘 Oxidation and Reduction📚 Oxidation

Q2

Which of the following chemical compounds found if fruits and vegetables causes browning when exposed to air ?

🎯 DSSSB PRT 27-03-2022 (Shift-III)

📘 Important Chemical Compounds📚 Baking Soda

Q3

Which gas evolved when baking soda is heated with water?

🎯 DSSSB PRT 26-03-2022 (Shift-III)

📘 Chemical Reactions📚 Chemical change

Q4

Which of the following is/are example(s) for chemical change of a substance?

🎯 DSSSB PRT 28-10-2017 (Shift-I)

📘 Structure of Atom📚 Atomic Mass

Q5

Atomic mass of calcium is

🎯 DSSSB PRT 07-03-2022 (Shift-III)

📘 Acids, Bases and Salts📚 Name of Acid present in compounds

Q6

Which one of the following natural sources correctly match with acid?

🎯 DSSSB PRT 15-11-2019 (Shift-I)

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

Q7

Which of the following is the most ductile metal ?

🎯 DSSSB PRT 16-03-2022 (Shift-III)

📘 Metallurgy📚 Alloys and Their compositions

Q8

Bronze is an alloy of two metals, whose names are-

🎯 DSSSB PRT 10-11-2018 (Shift-I)

📘 Important Chemical Compounds📚 Quick lime

Q9

What is the chemical formula of quick lime ?

🎯 DSSSB PRT 24-03-2022 (Shift-I)

📘 Important Chemical Compounds📚 Bleaching Powder

Q10

Which of the following statement(s) regarding use of bleaching powder is/are correct?
I. It is used as an oxidising agent in chemical industries.
II. It is used for disinfecting drinking water to make it free of germs.

🎯 DSSSB PRT 14-11-2019 (Shift-I)

Chemistry - MOST IMPORTANT DSSSB PRT Previous Year Questions