📘 Atomic Models📚 Dalton's Atomic Theory

Q1

Before 19th century who discovered that each chemical element is made from a unique type of atoms and those atom become different according their atomic mass.

🎯 SSC CGL (Tier-1) – 24/07/2023 (Shift-I)

📘 Atomic Models📚 Dalton's Atomic Theory

Q2

In 1808 which of the following proposed that the combination of two or more different elements form compounds?

🎯 SSC CGL (Tier-1) – 26/07/2023 (Shift-I)

📘 Mole Concept📚 Molecular Mass

Q3

What is the elemental percentage composition of H2SO3?

🎯 SSC CGL (Tier-1) – 19/07/2023 (Shift-III)

📘 Gas Laws📚 Ideal Gas Equation

Q4

One mole of an ideal gas occupies volume of .......... litre at 237 k temperature and 1 atm pressure.

🎯 SSC CGL (Tier-I) 19/04/2022 (Shift-III)

📘 Laws of Chemical Combinations📚 Avogadro's Law

Q5

Name the law in Physics which states that equal volume of all gases under the same conditions of temperature and pressure contain equal number of molecules.

🎯 SSC CGL (Tier-I)-2019 – 05/03/2020 (Shift-I)

📘 Mole Concept📚 Mole

Q6

One mole of an ideal gas occupies a volume of .......... litre at 273 K and 1 atm pressure.

🎯 SSC CGL 19/04/2022 (Shift-III)

📘 Pure Substance- Element-Classification of Matter on the basis of Chemical Properties- II📚 Metalloids

Q7

Which of the following are metalloids?

🎯 SSC CGL (Tier-1) – 18/07/2023 (Shift-II)

📘 Pure Substance- Element-Classification of Matter on the basis of Chemical Properties- II📚 Metalloids

Q8

Which of the following are metalloids?

🎯 SSC CGL (Tier-I) – 04/06/2019 (Shift-I)

📘 Pure Substance- Element-Classification of Matter on the basis of Chemical Properties- II📚 Metalloids

Q9

Which of the following elements is a metalloid?

🎯 SSC CGL(Tier-I)-04/06/2019 (Shift-I)

📘 Phase Changing Processes and Their Factors📚 Evaporation

Q10

The rate of vaporization increase by decreasing which of the following factor?

🎯 SSC CGL (Tier-I) 20/04/2022 (Shift-III)

📘 Phase Changing Processes and Their Factors📚 Boiling or Vaporization

Q11

The process of change from liquid to gas is called ?

🎯 SSC CGL(Tier-I)-13/06/2019 (Shift-I)

📘 Solution📚 Colloid and its types

Q12

An emulsion is a colloidal solution of

🎯 (SSC CGL (Tier-I) 06-09-2016, 4.15 pm)

📘 Solution📚 True Solution

Q13

are homogeneous mixtures of two or more components ?

🎯 SSC CGL(Tier-I)-05/03/2020 (Shift-II)

📘 Structure of Atom📚 Proton

Q14

How many protons are found in nucleus of Lithium?

🎯 SSC CGL (Tier-I) 18/04/2022 (Shift-III)

📘 Structure of Atom📚 Electron

Q15

Electron was discovered in the year 1897 by

🎯 SSC CGL(Tier-I)-07/06/2019 (Shift-II)

📘 Structure of Atom📚 Atomic Number

Q16

Atomic number of an atom gives the number of which of the following?

🎯 (SSC CGL 08-09-2016, 10 am)

📘 Structure of Atom📚 Electron

Q17

The antiparticle of an electron is ?

🎯 (SSC CGL (Tier-I) 07-09-2016, 1.15 pm)

📘 Structure of Atom📚 Proton

Q18

How many protons are there in a lithium nucleus?

🎯 SSC CGL 18/04/2022 (Shift-III)

📘 Quantum Number📚 Spin Quantum Number

Q19

What is the difference between two electrons in an orbit?

🎯 (SSC CGL (TIER-1) 27-10-2016, 10 am)

📘 Quantum Number📚 Spin Quantum Number

Q20

In any shell the difference between two electron to be done by ?

🎯 (SSC CGL (Tier-I) 27-10-2016, 10 am)

Chemistry - MOST IMPORTANT SSC CGL Previous Year Questions