Chemistry - MOST IMPORTANT SSC CPO Previous Year Questions
Practice real questions from previous year exams of SSC CPO.
📘 Classification of Matter on the basis of Chemical Properties- I📚 Pure Substance- Element
Q1
Which one of the following is not a compound?
🎯 SSC CPO (SI)-13/12/2019 (Shift-I)
📘 Phase Changing Processes and Their Factors📚 Condensation
Q2
The process of transformation of a substance in a gaseous state into a liquid state due to change in pressure or temperature of the substance is called:
🎯 SSC CPO-SI – 09/12/2019 (Shift-II)
📘 Solution📚 True Solution
Q3
Which among the following is NOT true about a solution and the solute concerned?
🎯 SSC CPO-SI 24/11/2020 (Shift-I)
📘 Solution📚 True Solution
Q4
Which one of the following can be categorised as a solution?
🎯 SSC CPO-SI – 09/12/2019 (Shift-I)
📘 Atomic Models📚 Cathode Ray Experiment
Q5
Cathode rays are a ray of
🎯 SSC CPO-SI 25/11/2020 (Shift-I)
📘 Radioactivity📚 Alpha rays
Q6
Which of the following represents on alpha particle?
🎯 SSC CPO-SI 25/11/2020 (Shift-I)
📘 Radioactivity📚 Applications of Radioactivity
Q7
The method of age determination called "radioactive uranium dating" cannot be used to determine the age of :
🎯 (SSC CPO (TIER-1) 2016)
📘 Electron Configuration📚 Cations and Anions
Q8
Which one of the following has a maximum tendency to form M³⁻ ion?
🎯 (SSC CPO (Tier-I) 2016)
📘 Acids, Bases and Salts📚 pH Scale
Q9
Which pH range does the human body functions?
🎯 SSC CPO (SI)-13/12/2019 (Shift-I)
📘 Structure of Atom📚 Atomic Number
Q10
What is the atomic number of the element einsteinium?
🎯 SSC CPO-SI 23/11/2020 (Shift-I)
📘 Structure of Atom📚 Atomic Number
Q11
Among the given elements, which comes first in the periodic table of elements?
🎯 SSC CPO-SI – 12/12/2019 (Shift-II)
📘 Periodic Properties📚 Misc
Q12
Which of the following metals in pure form has the highest melting point ?
🎯 SSC CPO-SI – 09/12/2019 (Shift-I)
📘 Water📚 Hard Water
Q13
Which among the following combination is present in higher amount in hard water?
🎯 SSC CPO-SI – 11/12/2019 (Shift-II)
📘 Chemistry in Everyday Life📚 Misc
Q14
Which of the following substance is used as an alternative to chlorine in bleaching ?
🎯 SSC CPO (SI)-11/12/2019 (Shift-I)
📘 Important Chemical Compounds📚 Misc
Q15
Which among the following gases is also known as 'Laughing Gas'?
🎯 SSC CPO-SI – 12/12/2019 (Shift-I)
📘 Classification of Elements in Modern Periodic Table📚 p-block
Q16
Which of the following is NOT a noble gas?
🎯 SSC CPO (SI)-11/12/2019 (Shift-I)
📘 Solution📚 Solubility and Factors affecting Solubility
Q17
Which chemical law proposes that 'soft drinks and soda bottles are sealed under high pressure to increase the solubility of CO2'?
🎯 SSC CPO-SI – 09/12/2019 (Shift-I)
📘 Pure Substance- Compound-Classification of Matter on the basis of Chemical Properties- II📚 Inorganic Compound
Q18
What is another name for saltpeter?
🎯 SSC CPO-SI 23/11/2020 (Shift-II)
📘 General Miscellaneous📚 Chemical Symbols and Formulas
Q19
Potassium is a chemical element whose chemical symbol is?
🎯 SSC CPO (SI)-13/12/2019 (Shift-I)
📘 Chemical Reactions📚 Single Displacement Reaction
Q20
The iron nail becomes after being immersed in copper sulphate solution.
🎯 SSC CPO-SI 23/11/2020 (Shift-II)