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Actual form of starting and joining in a journey forward supremacy power [ meditation ]⭐️❤️
Target 1 : first connect to some high supremacy , u are doing prayer but atleast do samarpan to your Ishttt❤️
tab jake koi kam kro ge padai xyz ,, ache se focus hoga
tab jake koi kam kro ge padai xyz ,, ache se focus hoga
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
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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
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