Chemistry - MOST IMPORTANT RRB JE Previous Year Questions
Practice real questions from previous year exams of RRB JE.
📘 Matter in Our Surroundings📚 General Facts
Q1
Which of the following statements is not correct with respect to substance?
🎯 RRB JE 02.06.2019 (Shift-IV)
📘 Classification of Matter on the basis of Chemical Properties- I📚 Mixture (Impure substance)- Homogeneous and Heterogeneous
Q2
The mixture can be ....... in nature?
🎯 RRB JE 02.06.2019 (Shift-IV)
📘 Classification of Matter on the basis of Chemical Properties- I📚 Mixture (Impure substance)- Homogeneous and Heterogeneous
Q3
Which of the following is a heterogeneous mixture?
🎯 RRB JE (14.12.2014, Green paper)
📘 Solution📚 Suspension
Q4
The heterogeneous mixture, in which solute particles do not dissolve but remain suspended throughout the medium, is called?
🎯 RRB JE 27.05.2019 (Shift-I)
📘 Classification of Matter on the basis of Chemical Properties- I📚 Mixture (Impure substance)- Homogeneous and Heterogeneous
Q5
A mixture of sand and sugar is an example of ....?
🎯 RRB JE 27.05.2019 (Shift-III)
📘 Chemical Reactions📚 Physical change
Q6
Which of the following is not a physical change?
🎯 RRB JE 24.05.2019 (Shift-I)
📘 Chemical Reactions📚 Chemical change
Q7
Which of the following is not a chemical change?
🎯 RRB JE 2014 (14.12.2014 Set-2, Red Paper)
📘 Laws of Chemical Combinations📚 Laws of Conservation of Mass
Q8
Which law states that mass cannot be produced or destroyed in a chemical reaction?
🎯 RRB JE 23.05.2019 (Shift-III)
📘 Laws of Chemical Combinations📚 Laws of Conservation of Mass
Q9
The balanced chemical equation corresponds to .......?
🎯 RRB JE 31.05.2019 (Shift-III)
📘 Laws of Chemical Combinations📚 Laws of Definite Proportions
Q10
The rule of constant ratio was given by?
🎯 RRB JE 31.05.2019 (Shift-IV)
📘 Atomic Models📚 Dalton's Atomic Theory
Q11
Who among the following told about the indivisibility of an atom?
🎯 RRB JE 27.06.2019 (Shift-I)
📘 Atomic Models📚 Dalton's Atomic Theory
Q12
Which postulate of Dalton's atomic theory is the result of mass conservation law?
🎯 RRB JE 28.05.2019 (Shift-III)
📘 Mole Concept📚 Misc
Q13
Atoms chemically combine to become ......?
🎯 RRB JE 25.05.2019 (Shift-III)
📘 Mole Concept📚 Misc
Q14
Atoms of the same element or different elements together can make ........?
🎯 RRB JE 01.06.2019 (Shift-I)
📘 Mole Concept📚 Misc
Q15
Atoms of the same element or different elements together can make ........?
🎯 RRB JE 26.05.2019 (Shift-III)
📘 Mole Concept📚 Avogadro's Number
Q16
The number of atoms or molecules or ions present in one mole of a substance is called........
🎯 RRB JE 27.05.2019 (Shift-I)
📘 Mole Concept📚 Number of Particles Calculations
Q17
Which of the following weight is the highest?
🎯 RRB JE (14.12.2014, Yellow paper)
📘 Mole Concept📚 Number of Particles Calculations
Q18
The number of avogadro = N₀ = 6.02 ×10²³ mole⁻¹, so what is the number of atoms in 0.1 mole of a triplet gas?
🎯 RRB JE 21.12.2014
📘 Mole Concept📚 Number of Particles Calculations
Q19
What is the mass of 0.1 mole of CH4?
🎯 RRB JE 21.12.2014
📘 Mole Concept📚 Avogadro's Number
Q20
Avogadro number Na means ?
🎯 RRB JE (21.12.2014, Set-09, Yellow paper)