Chemistry - MOST IMPORTANT SSC JE Previous Year Questions
Practice real questions from previous year exams of SSC JE.
📘 Chemical Reactions📚 Chemical change
Q1
Which of the following changes CANNOT be reversed?
🎯 SSC JE Civil – 23/03/2021 (Shift-I)
📘 Chemical Reactions📚 Chemical change
Q2
Which of the following is a chemical change?
🎯 SSC JE Mechanical – 22/03/2021 (Shift-II)
📘 Atomic Models📚 Dalton's Atomic Theory
Q3
According to Dalton's atomic theory atoms are combined in a certain small whole number ratio to produce ..........
🎯 SSC JE Electrical 09/10/2023 (Shift-III)
📘 Atomic Models📚 Dalton's Atomic Theory
Q4
Who proposed that all matters were composed of atoms, that are indivisible and indestructible building blocks?
🎯 SSC JE Mechanical - 27/09/2019 (Shift-II)
📘 Mole Concept📚 Molecular Mass
Q5
What is the molecular mass of nitric acid?
🎯 SSC JE Electrical – 24/03/2021 (Shift-I)
📘 Atomicity📚 Misc
Q6
Which of the following can be defined as the smallest particle of an element that is capable of an independent existence?
🎯 SSC JE Civil - 29/01/2018 (Shift-II)
📘 Structure of Atom📚 Electron
Q7
Mass of a hydrogen atom is how many times the mass of an electron?
🎯 SSC JE Civil - 22/01/2018 (Shift-I)
📘 Mole Concept📚 Number of Particles Calculations
Q8
What is the mass of 4 Moles of aluminium atoms?
🎯 SSC JE Civil - 23/01/2018 (Shift-I)
📘 Mole Concept📚 Number of Particles Calculations
Q9
How many moles are present in 36 gm of water?
🎯 SSC JE Civil - 22/01/2018 (Shift-II)
📘 Pure Substance- Element-Classification of Matter on the basis of Chemical Properties- II📚 Non-metals and its properties
Q10
Which among the following is a non-metal?
🎯 SSC JE Civil 29.10.2020 (Shift-I)
📘 Gas Laws📚 Diffusion
Q11
A drop of food colouring spreading out in a cup of water is an example of:
🎯 SSC JE Mechanical 11.12.2020 (Shift-I)
📘 Classification of Matter on the basis of Chemical Properties- I📚 Mixture (Impure substance)- Homogeneous and Heterogeneous
Q12
Which of the following is a heterogeneous mixture?
🎯 SSC JE Civil - 25/01/2018 (Shift-I)
📘 Separation of Mixtures📚 Sedimentation
Q13
What is the process called when the heavier component settles down after adding water to the mixture?
🎯 SSC JE Mechanical – 22/03/2021 (Shift-I)
📘 Separation of Mixtures📚 Misc
Q14
Which of the following is NOT advisable as a process of separation of components of a mixture?
🎯 SSC JE Mechanical – 22/03/2021 (Shift-II)
📘 Phase Changing Processes and Their Factors📚 Boiling or Vaporization
Q15
Which of the following process changes liquids directly into gases (vapour)?
🎯 SSC JE Electrical 10/10/2023 (Shift-II)
📘 Phase Changing Processes and Their Factors📚 Sublimation
Q16
In the water cycle, snow and ice get directly converted into vapours. This process is called:
🎯 SSC JE Mechanical – 22/03/2021 (Shift-II)
📘 Gas Laws📚 Diffusion
Q17
Osmosis is diffused conduction of .............
🎯 SSC JE CIVIL 11/10/2023 (Shift-I)
📘 Solution📚 Colloid and its types
Q18
Which of the following is an example of colloidal solution of liquid in solid?
🎯 SSC JE Civil - 24/01/2018 (Shift-I)
📘 Units of Concentration of Solution📚 Molarity
Q19
Which of the following formula is correct?
🎯 SSC JE
📘 Structure of Atom📚 Neutron
Q20
Who discovered the neutron among the following?
🎯 SSC JE 02/03/2017 10:00 AM.