Chemistry Class 11 QBank
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1 – Some Basic Concepts in Chemistry1 Test
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2 – Structure of Atoms1 Test
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3 – Classification of Elements & Periodicity in Properties1 Test
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4 – Chemical Bonding and Molecular Structure1 Test
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5 – States of Matter Gaseous and Liquids1 Test
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6 – Thermodynamics1 Test
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7 – Chemical Equilibrium1 Topic|1 Test
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8 – Ionic Equilibrium1 Test
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9 – Redox Reactions1 Test
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10 – Hydrogen1 Test
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11 – s Block Elements (Alkali & Alkaline Earth Metals)
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12 – Some p Block Elements
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13 – Organic Chemistry Some Basic Principles and Techniques
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14 – Hydrocarbons
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15 – Environmental Chemistry
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Question 1 of 44
1. Question
Which of the following pair of orbitals posses two nodal planes?
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Question 2 of 44
2. Question
Statement 1 : Cathode rays do not travel in straight lines.
Statement 2 : Through thick sheets, the cathode rays penetrate.
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Question 3 of 44
3. Question
The energy required to excite the electron in a hydrogen atom from the ground state to the first excited state if the ionization energy of hydrogen atom is – 13.6 eV. (Avogadro’s constant = 6.022 x 1023)
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Question 4 of 44
4. Question
Find from the following that has maximum energy.
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Question 5 of 44
5. Question
What is the shape of s-orbital?
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Question 6 of 44
6. Question
Find the four quantum number for the valence shell electron or last electron of sodium (Z = 11)?
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Question 7 of 44
7. Question
Set of quantum numbers which is not allowed is:
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Question 8 of 44
8. Question
What is the shape of the orbital when the azimuthal quantum number has a value of I = 1?
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Question 9 of 44
9. Question
Statement 1 : \(3d_z ^2\) orbital is spherically symmetrical.
Statement 2 : \(3d_z ^2\)orbital is spherical in shape which is the only d-orbital.
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Question 10 of 44
10. Question
When beryllium is bombarded with \(\alpha\)-particles: extremely penetrating radiations which cannot be deflected by magnetic field or electrical field are given out. These are
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Question 11 of 44
11. Question
Find the total number of unpaired electrons in d – orbitals of atoms of element of atomic number 29.
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Question 12 of 44
12. Question
Which one of the following is correct for the nuclides?
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Question 13 of 44
13. Question
Find the number of orbitals in d sub-shell.
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Question 14 of 44
14. Question
Who proposed the dual nature of particles?
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Question 15 of 44
15. Question
Find the number of unpaired electrons in an o\(_{2}\) molecule.
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Question 16 of 44
16. Question
What is the electronic configuration of ferric ion?
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Question 17 of 44
17. Question
The nitrogen atom contain 7 electrons and 7 protons, the nitride ion \(N^{-3}\) will have
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Question 18 of 44
18. Question
What will be the shape of \(d_{xy}\) orbital?
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Question 19 of 44
19. Question
Which of the following statement (s) is (are) correct?
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Question 20 of 44
20. Question
Which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields in a multi-electron atom?
(1) n = L I = 0, m = 0
(2) n = 2,l = 0, m = 0
(3) n = 2,1 = 1, m = 1
(4) n = 3,1 = 2, m = 0
(5) n = 3,1=2, m = 0
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Question 21 of 44
21. Question
______has more unpaired d-electrons.
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Question 22 of 44
22. Question
de-Broglie equation is given by:
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Question 23 of 44
23. Question
The electronic configuration of an element with atomic number 17 is represented by:
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Question 24 of 44
24. Question
Element which is represented by the following electronic configuration is
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Question 25 of 44
25. Question
The electron is________
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Question 26 of 44
26. Question
For given energy E = 3.03 \(\times{10}^{-19}\)Joules, what is the corresponding wavelength?!( h =\( 6.626\times{10}^{-34}J sec\), c =\( 3\times{10}^{8}m/sec\))
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Question 27 of 44
27. Question
According to photoelectric effect, the kinetic energy of the ejected electrons is directly proportional to which one of the following property?
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Question 28 of 44
28. Question
Find the total number of orbitals having I = 3 for principle quantum number n = 4.
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Question 29 of 44
29. Question
What kind of charge does neutron have?
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Question 30 of 44
30. Question
Find the number of protons, neutrons and electrons in the element \( ^{231}_{89}Y\)
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Question 31 of 44
31. Question
Find the number of electrons in cl– ion.
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Question 32 of 44
32. Question
In ionization energy of H-atoms is 13.6 eV. then what is the ionization energy of \( He^{-}\) ion?
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Question 33 of 44
33. Question
Neutron is a fundamental particle which carries
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Question 34 of 44
34. Question
Energy of H-atom in the ground state is -13.6 eV, what is the energy in the second excited state?
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Question 35 of 44
35. Question
has the maximum number of unpaired electrons______________.
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Question 36 of 44
36. Question
An atom has 26 electrons and its atomic weight is 56. What will De the number of neutrons in the nucleus of the atom?
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Question 37 of 44
37. Question
Experimental evidence for the existence of the atomic nucleus derived from
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Question 38 of 44
38. Question
Which of the following have the same number of unpaired electrons in’d’ orbitals?
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Question 39 of 44
39. Question
Which particles are equivalent in neutral atom?
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Question 40 of 44
40. Question
Rutherford’s alpha particle scattering experiment finally led to the conclusion that
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Question 41 of 44
41. Question
What does azimuthal quantum number define?
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Question 42 of 44
42. Question
Find the maximum number of electrons that can be accommodated in T sub-shell.
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Question 43 of 44
43. Question
What is the shape of p-orbilal?
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Question 44 of 44
44. Question
Uncertainty principle provide the concept of
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