Inorganic and organic ki ncert mai yahi cover krdo ga questions ke through + Notes bhi provide krdo chapter finished hote hi .... ❤️
ClassifiCation of ElEmEnts and PEriodiCity in ProPErtiEs ✅👇
Q1. The period number in the long form of the periodic table is equal to
[ NCERT EXAMPLER ]
[ NCERT EXAMPLER ]
Anonymous Quiz
11%
magnetic quantum number of any element of the period
22%
atomic number of any element of the period
67%
maximum principal quantum number of any element of the period
0%
maximum azimuthal quantum number of any element of the period
Q2. Modern periodic table is based on atmoic number of elements . experiment which proved significance of atomic number was
Anonymous Quiz
18%
mullikans oil drop experiment
71%
moseley's work on X ray spectra
12%
braggs work on X ray diffraction
0%
discovery of X rays by Rontgen
Q3
Statement 1 : Periodic law revealed important analogies among the 94 naturally occurring elements [ Np & Pu like Actinium & proactinium are also found in pitch blende –an ore of uranium)
statement 2 : It stimulated interest in Inorganic Chemistry
Statement 1 : Periodic law revealed important analogies among the 94 naturally occurring elements [ Np & Pu like Actinium & proactinium are also found in pitch blende –an ore of uranium)
statement 2 : It stimulated interest in Inorganic Chemistry
Anonymous Quiz
25%
Statement 1 is incorrect statement 2 is correct
13%
Statement 1 is correct statement 2 is incorrect
13%
Statement 1 is incorrect statement 2 is incorrect
50%
Statement 1 is correct statement 2 is correct
Q4. Periodic Law is essentially the consequence
of the following ?
of the following ?
Anonymous Quiz
0%
atomic number is equal to the nuclear charge ( no of protons) or no of electrons in a neutral atom
0%
Easy to visualize significance of quantum no & electronic configurations in periodicity of elements
38%
periodic variation in electronic configurations determine physical & chemical properties of elements
62%
all of above
Q5. Which of the following is correct for “long form” of the Periodic table .
Anonymous Quiz
7%
The horizontal rows (which Mendeleev called series) are called groups , vertical columns: periods.
29%
Elements having similar outer electronic config in their atoms are arranged in horizontal columns
36%
period number corresponds to the highest principal quantum number (n) of the element in period
29%
correct order of configuration is : ns — [n-1]d—[n-2]f—np
Q6. [ JEE MAINS ]
Statement (I): A plot of √ν (ν = frequency of X-rays emitted) vs atomic mass is a straight line.
Statement (II): A plot of ν (ν = frequency of X-rays emitted) vs atomic number is a straight line.
Statement (I): A plot of √ν (ν = frequency of X-rays emitted) vs atomic mass is a straight line.
Statement (II): A plot of ν (ν = frequency of X-rays emitted) vs atomic number is a straight line.
Anonymous Quiz
8%
statement 1 is true only
33%
both statements are true
17%
both statements are false
42%
only statement 1 is false
Stybits : STUDY BETTER
Q3
Statement 1 : Periodic law revealed important analogies among the 94 naturally occurring elements [ Np & Pu like Actinium & proactinium are also found in pitch blende –an ore of uranium)
statement 2 : It stimulated interest in Inorganic Chemistry
Statement 1 : Periodic law revealed important analogies among the 94 naturally occurring elements [ Np & Pu like Actinium & proactinium are also found in pitch blende –an ore of uranium)
statement 2 : It stimulated interest in Inorganic Chemistry
FROM NCERT LINE [ jo students ncert skip krte hai unhh ke liye piyar se😂bnya ques]
Q7. Match the LIST-I with LIST-II
[ JEE MAINS 2025 ]
[ JEE MAINS 2025 ]
Anonymous Quiz
9%
A-IV, B-I, C-II, D-III
55%
A-IV, B-III, C-I, D-II
36%
A-II, B-III, C-IV, D-I
0%
A-III, B-I, C-IV, D-II
❤3
Q8. If IUPAC name of an element is “Unununnium” then the element belongs to nth group of periodic table. The value of n is______
[ similar to JEE 2024 ]
[ similar to JEE 2024 ]
Anonymous Quiz
33%
I B
50%
II B
17%
II A
0%
I A
❤2
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
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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
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