Q9. It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power ‘n’ i.e. vn of X-rays emitted is plotted against atomic number 'Z',
the value of n -______
the value of n -______
Anonymous Quiz
33%
1
17%
2
50%
1/2
0%
3
❤2
Q10. Statement (I): According to law of Octave elements were arranged in increasing order of their atomic number.
Statement (II): Observed a periodically repeated pattern against their respective atomic numbers
Statement (II): Observed a periodically repeated pattern against their respective atomic numbers
Anonymous Quiz
25%
Statement 1 is true Statement 2 is false
13%
Statement 1 is true Statement 2 is true
38%
Statement 1 is false Statement 2 is true
25%
Statement 1 is false Statement 2 is false
❤2
Q11. The IUPAC nomenclature of an element with electronic configuration [Rn] 5f14 6d1 7s2 is:
[ similar to pyq ]
[ similar to pyq ]
Anonymous Quiz
70%
Lawrencium
20%
Dubnium
0%
Mendelevium
10%
Flerovium
❤2
Q12. Which one of the following statements for D.I. Mendeleev's, is incorrect?
Anonymous Quiz
44%
At the time, he proposed periodic table of elements structure of atom was known
33%
Element with atomic number 101 is named after him
22%
He invented accurate barometer
0%
He authored the textbook – Principles of Chemistry
❤2
Q13. What would be the IUPAC name and symbol for the element with atomic number 120? [ NCERT]
Anonymous Quiz
93%
unbinilium
7%
ununnilium
0%
unbibiium
0%
unbiunium
❤3
Q14. On the basis of quantum numbers, justify that the sixth period of the periodic table should have 32 elements [ NCERT ]
Anonymous Quiz
30%
no of elements in each 'n' is twice no of orbital available in energy level that is being filled.
10%
no of elements in each 'n' is no of orbital available in energy level that is being filled.
30%
sixth shell opens wide, with orbitals sixteen inside—thirty-two elements take the ride
30%
all of above
❤2
Q15. In terms of period and group where would you locate the element with Z =114? [ NCERT ]
Anonymous Quiz
7%
n = 6th , 7 group
7%
n = 6th , 14 group
7%
n = 5th , 7 group
79%
n = 7th , 14 group
❤2
Q16. The elements with atomic numbers 35,53and85 are all [ exampler ]
Anonymous Quiz
0%
noble gas
75%
halogens
25%
heavy metals
0%
light metals
❤3
Q17. Which of the following sequences contain atomic numbers of only representative elements?
[ exampler ]
[ exampler ]
Anonymous Quiz
33%
3, 33, 53, 87
33%
2, 10, 22, 36
25%
7, 17, 25, 37, 48
8%
9, 35, 51, 77
❤2
Q18. After filling np orbitals next orbitals filled be ?
Anonymous Quiz
35%
ns
35%
[n+1]p
5%
[n-1]p
25%
[n+1]d
❤3🌚2
Completed Introduction of Chapter ✅❤️ from JEE MAINS , NEET , NCERT LINES , EXAMPLER , EXCERISE : kuch shuru ka part last mai krege⭐️ jaha classification hui hai table ki .
REACTION DE DENA KESE LAGEE QUESTIONSS❤️
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REACTION DE DENA KESE LAGEE QUESTIONSS❤️
For any query dm = @temchivan or @radhathakurji
❤3🥰3
Q19. Assign the position of the element having outer electronic configuration
(i) ns²np⁴ for n=3
(ii) (n-1)d²ns² for n=4, (iii) (n-2) f ⁷(n-1)d¹ns² for n=6 [ NCERT ]
(i) ns²np⁴ for n=3
(ii) (n-1)d²ns² for n=4, (iii) (n-2) f ⁷(n-1)d¹ns² for n=6 [ NCERT ]
Anonymous Quiz
23%
Aluminum, Scandinavian , Titanium
23%
Gadolinium , Sulphur , Titanium
23%
Silicone, Zirconium , Cm
31%
Sulphur, Titanium , Gadolinium
❤1
Q20. Which of the following statements related to the modern periodic table is incorrect? [NCERT]
Anonymous Quiz
25%
p-block has 6 columns, because a maximum of 6 electrons can occupy all the orbitals in a p-shell.
58%
The d-block has 8 columns, because a maximum of 8 electrons can occupy all orbitals in a d-subshell
8%
Each block contains a number of columns equal to number of electrons that can occupy that subshell
8%
block indicates value of azimuthal no.for last subshell received e- in building up electronic config
❤1🥰1
Q21. Tell the period , group and block of
(Xe) 6s²4f⁷5d¹
(Xe) 6s²4f⁷5d¹
Anonymous Quiz
77%
6,3, F Block
8%
4,12,D Block
8%
3rd , 3rd , F Block
8%
None
👍1
❤2
Q23. Which of the following is pseudo inert gas ?
Anonymous Quiz
14%
[ Ar] 4s²3d¹⁰
29%
[He] 2s² 2p⁶
57%
Both a and b
0%
None
⚡1
Q24. Which of the following is half filled ?
Anonymous Quiz
8%
Yb²+
25%
Eu²+
17%
Tb⁴+
50%
Both b and c
❤1
Q26. The atom having valence shell electronic configuration : 4s²4p²
Anonymous Quiz
10%
Group II A & period 3
40%
Group II B & period 4
50%
Group IVA & period 4
0%
Group IIIA & period 3
Q27. Which of the following set of elements belong to same period
Anonymous Quiz
38%
Zn,Cd,Hg
38%
Fr, Ra , U
15%
K , Ca, Ag
8%
none
❤1