Topic-WiSE
Question
Bank for
Chapter :
Basic
Concepts of
Chemistry
, Set 1
Topics Covered: Application of chemistry ,Matter,Classification of matter,Mixture
(meaning ,examples & types) ,Atoms,Molecules,Elements Compounds,Subatomic
particles(all 3 in detail-their, masses, charge, sign, representation,formula), Specific
charge,Symbol of an element,Mass number,Atomic
number,Atomicity,Ions(meaning ,examples & types),number of subatomic particles in an
atom,number of subatomic particles in an iron and formula to obtain them.
Q1. Which branch of chemistry deals with the study of carbon compounds except oxides of
carbon and carbonates?
A. Inorganic
B. Organic
C. Physical
D. Analytical
Q2. Which of the following is not a physical property of matter?
A. Mass
B. Volume
C. Reactivity
D. Density
Q3. Which of the following is a homogeneous mixture?
A. Air
B. Oil and water
C. Sand and salt
D. Iron fillings and sulphur
Q4. Which of the following is a chemical change?
A. Melting of ice
B. Rusting of iron
C. Boiling water
D. Sublimation of iodine
Q5. Which of the following is a triatomic molecule?
A. H₂
B. O₃
C. N₂
D. He
Q6. The charge on an electron is:
A. +1.602 × 10⁻¹⁹ C
,B. –1.602 × 10⁻¹⁹ C
C. +9.11 × 10⁻³¹ kg
D. –9.11 × 10⁻³¹ kg
Q7. The mass of a neutron is approximately:
A. 1.008 u
B. 1.000 u
C. 0.00055 u
D. 0.98 u
Q8. Which of the following has the highest specific charge?
A. Electron
B. Proton
C. Neutron
D. Alpha particle
Q9. Symbol for the element with atomic number 16 is:
A. Si
B. S
C. Sr
D. Sb
Q10. Which number indicates the number of protons in an atom?
A. Atomic number
B. Mass number
C. Atomicity
D. Specific charge
Q11. Number of electrons in Mg²⁺ is:
A. 10
B. 12
C. 14
D. 24
Q12. Which of the following is an example of a diatomic element?
A. H₂
B. CO₂
C. SO₂
D. O₃
Q13. The number of protons, neutrons and electrons in ¹⁴₆C are respectively:
A. 6, 8, 6
B. 8, 6, 6
C. 6, 6, 8
D. 8, 8, 6
Q14. Which of the following is not a type of mixture?
A. Homogeneous
B. Heterogeneous
C. Colloidal
D. Compound
Q15. The correct formula to calculate number of neutrons in an atom is:
A. N = Z + A
B. N = A – Z
, C. N = A/Z
D. N = Z – A
Q16. Which of the following is a cation?
A. Cl⁻
B. Na⁺
C. OH⁻
D. SO₄²⁻
Q17. An element has atomic number 11 and mass number 23. Its number of protons and neutrons
are:
A. 11, 12
B. 12, 11
C. 23, 11
D. 11, 23
Q18. Which scientist discovered the electron?
A. Rutherford
B. Thomson
C. Goldstein
D. Chadwick
Q19. The number of atoms present in 1 mole of a substance is:
A. 3.011 × 10²²
B. 6.022 × 10²³
C. 1.602 × 10⁻¹⁹
D. 9.11 × 10⁻³¹
Q20. Which particle determines the chemical properties of an atom?
A. Proton
B. Neutron
C. Electron
D. Nucleus
Q21. Identify the heterogeneous mixture:
A. Air
B. Brass
C. Smoke
D. Sugar solution
Q22. Atomicity of phosphorus is:
A. 2
B. 4
C. 8
D. 5
Q23. Which of the following is not a subatomic particle?
A. Electron
B. Proton
C. Positron
D. Neutron
Q24. Mass number is equal to:
A. Protons only
B. Protons + Electrons
Question
Bank for
Chapter :
Basic
Concepts of
Chemistry
, Set 1
Topics Covered: Application of chemistry ,Matter,Classification of matter,Mixture
(meaning ,examples & types) ,Atoms,Molecules,Elements Compounds,Subatomic
particles(all 3 in detail-their, masses, charge, sign, representation,formula), Specific
charge,Symbol of an element,Mass number,Atomic
number,Atomicity,Ions(meaning ,examples & types),number of subatomic particles in an
atom,number of subatomic particles in an iron and formula to obtain them.
Q1. Which branch of chemistry deals with the study of carbon compounds except oxides of
carbon and carbonates?
A. Inorganic
B. Organic
C. Physical
D. Analytical
Q2. Which of the following is not a physical property of matter?
A. Mass
B. Volume
C. Reactivity
D. Density
Q3. Which of the following is a homogeneous mixture?
A. Air
B. Oil and water
C. Sand and salt
D. Iron fillings and sulphur
Q4. Which of the following is a chemical change?
A. Melting of ice
B. Rusting of iron
C. Boiling water
D. Sublimation of iodine
Q5. Which of the following is a triatomic molecule?
A. H₂
B. O₃
C. N₂
D. He
Q6. The charge on an electron is:
A. +1.602 × 10⁻¹⁹ C
,B. –1.602 × 10⁻¹⁹ C
C. +9.11 × 10⁻³¹ kg
D. –9.11 × 10⁻³¹ kg
Q7. The mass of a neutron is approximately:
A. 1.008 u
B. 1.000 u
C. 0.00055 u
D. 0.98 u
Q8. Which of the following has the highest specific charge?
A. Electron
B. Proton
C. Neutron
D. Alpha particle
Q9. Symbol for the element with atomic number 16 is:
A. Si
B. S
C. Sr
D. Sb
Q10. Which number indicates the number of protons in an atom?
A. Atomic number
B. Mass number
C. Atomicity
D. Specific charge
Q11. Number of electrons in Mg²⁺ is:
A. 10
B. 12
C. 14
D. 24
Q12. Which of the following is an example of a diatomic element?
A. H₂
B. CO₂
C. SO₂
D. O₃
Q13. The number of protons, neutrons and electrons in ¹⁴₆C are respectively:
A. 6, 8, 6
B. 8, 6, 6
C. 6, 6, 8
D. 8, 8, 6
Q14. Which of the following is not a type of mixture?
A. Homogeneous
B. Heterogeneous
C. Colloidal
D. Compound
Q15. The correct formula to calculate number of neutrons in an atom is:
A. N = Z + A
B. N = A – Z
, C. N = A/Z
D. N = Z – A
Q16. Which of the following is a cation?
A. Cl⁻
B. Na⁺
C. OH⁻
D. SO₄²⁻
Q17. An element has atomic number 11 and mass number 23. Its number of protons and neutrons
are:
A. 11, 12
B. 12, 11
C. 23, 11
D. 11, 23
Q18. Which scientist discovered the electron?
A. Rutherford
B. Thomson
C. Goldstein
D. Chadwick
Q19. The number of atoms present in 1 mole of a substance is:
A. 3.011 × 10²²
B. 6.022 × 10²³
C. 1.602 × 10⁻¹⁹
D. 9.11 × 10⁻³¹
Q20. Which particle determines the chemical properties of an atom?
A. Proton
B. Neutron
C. Electron
D. Nucleus
Q21. Identify the heterogeneous mixture:
A. Air
B. Brass
C. Smoke
D. Sugar solution
Q22. Atomicity of phosphorus is:
A. 2
B. 4
C. 8
D. 5
Q23. Which of the following is not a subatomic particle?
A. Electron
B. Proton
C. Positron
D. Neutron
Q24. Mass number is equal to:
A. Protons only
B. Protons + Electrons
