📘 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)

Chemistry - MOST IMPORTANT RRB JE Previous Year Questions