Genesis of Periodic Classification
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313041 Which of the following is not a Dobereiner triad?

1 Cl,Br,I
2 Ca,Sr,Ba
3 Li, Na,K
4 Fe,Co, Ni
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313042 The law of triads is applicable to -

1 C, N, O
2 H, O, N
3 Na, K, Rb
4 Cl, Br, I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313043 Atomic weight of Cl = 35.5 and of I = 127. According to Dobereiner's triad rule atomic weight of Br will be:

1 80
2 162.5
3 81.25
4 91.5
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313044 How many of the following sets represent Dobereiner's triads?
i. \({\mathrm{\mathrm{P}, \mathrm{As}, \mathrm{Bi}}}\)
ii. \({\mathrm{\mathrm{Ca}, \mathrm{Sr}, \mathrm{Ba}}}\)
iii. \({\mathrm{\mathrm{Cl}, \mathrm{Br}, \mathrm{I}}}\)
iv. \({\mathrm{\mathrm{Li}, \mathrm{Na}, \mathrm{K}}}\)

1 4
2 2
3 3
4 1
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313045 The graph of first ionisation enthalpy versus atomic number is as follows :
Which of the following statement is correct ?
supporting img

1 Alkali metals are at the maxima and noble gases at the minima.
2 Noble gases are at the maxima and alkali metals at the minima.
3 Transition elements are at the maxima.
4 Minima and maxima do not show any regular behaviour.
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313041 Which of the following is not a Dobereiner triad?

1 Cl,Br,I
2 Ca,Sr,Ba
3 Li, Na,K
4 Fe,Co, Ni
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313042 The law of triads is applicable to -

1 C, N, O
2 H, O, N
3 Na, K, Rb
4 Cl, Br, I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313043 Atomic weight of Cl = 35.5 and of I = 127. According to Dobereiner's triad rule atomic weight of Br will be:

1 80
2 162.5
3 81.25
4 91.5
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313044 How many of the following sets represent Dobereiner's triads?
i. \({\mathrm{\mathrm{P}, \mathrm{As}, \mathrm{Bi}}}\)
ii. \({\mathrm{\mathrm{Ca}, \mathrm{Sr}, \mathrm{Ba}}}\)
iii. \({\mathrm{\mathrm{Cl}, \mathrm{Br}, \mathrm{I}}}\)
iv. \({\mathrm{\mathrm{Li}, \mathrm{Na}, \mathrm{K}}}\)

1 4
2 2
3 3
4 1
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313045 The graph of first ionisation enthalpy versus atomic number is as follows :
Which of the following statement is correct ?
supporting img

1 Alkali metals are at the maxima and noble gases at the minima.
2 Noble gases are at the maxima and alkali metals at the minima.
3 Transition elements are at the maxima.
4 Minima and maxima do not show any regular behaviour.
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313041 Which of the following is not a Dobereiner triad?

1 Cl,Br,I
2 Ca,Sr,Ba
3 Li, Na,K
4 Fe,Co, Ni
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313042 The law of triads is applicable to -

1 C, N, O
2 H, O, N
3 Na, K, Rb
4 Cl, Br, I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313043 Atomic weight of Cl = 35.5 and of I = 127. According to Dobereiner's triad rule atomic weight of Br will be:

1 80
2 162.5
3 81.25
4 91.5
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313044 How many of the following sets represent Dobereiner's triads?
i. \({\mathrm{\mathrm{P}, \mathrm{As}, \mathrm{Bi}}}\)
ii. \({\mathrm{\mathrm{Ca}, \mathrm{Sr}, \mathrm{Ba}}}\)
iii. \({\mathrm{\mathrm{Cl}, \mathrm{Br}, \mathrm{I}}}\)
iv. \({\mathrm{\mathrm{Li}, \mathrm{Na}, \mathrm{K}}}\)

1 4
2 2
3 3
4 1
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313045 The graph of first ionisation enthalpy versus atomic number is as follows :
Which of the following statement is correct ?
supporting img

1 Alkali metals are at the maxima and noble gases at the minima.
2 Noble gases are at the maxima and alkali metals at the minima.
3 Transition elements are at the maxima.
4 Minima and maxima do not show any regular behaviour.
For More Updates join with Us
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313041 Which of the following is not a Dobereiner triad?

1 Cl,Br,I
2 Ca,Sr,Ba
3 Li, Na,K
4 Fe,Co, Ni
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313042 The law of triads is applicable to -

1 C, N, O
2 H, O, N
3 Na, K, Rb
4 Cl, Br, I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313043 Atomic weight of Cl = 35.5 and of I = 127. According to Dobereiner's triad rule atomic weight of Br will be:

1 80
2 162.5
3 81.25
4 91.5
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313044 How many of the following sets represent Dobereiner's triads?
i. \({\mathrm{\mathrm{P}, \mathrm{As}, \mathrm{Bi}}}\)
ii. \({\mathrm{\mathrm{Ca}, \mathrm{Sr}, \mathrm{Ba}}}\)
iii. \({\mathrm{\mathrm{Cl}, \mathrm{Br}, \mathrm{I}}}\)
iv. \({\mathrm{\mathrm{Li}, \mathrm{Na}, \mathrm{K}}}\)

1 4
2 2
3 3
4 1
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313045 The graph of first ionisation enthalpy versus atomic number is as follows :
Which of the following statement is correct ?
supporting img

1 Alkali metals are at the maxima and noble gases at the minima.
2 Noble gases are at the maxima and alkali metals at the minima.
3 Transition elements are at the maxima.
4 Minima and maxima do not show any regular behaviour.
NEET DIGITAL LIBRARY
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313041 Which of the following is not a Dobereiner triad?

1 Cl,Br,I
2 Ca,Sr,Ba
3 Li, Na,K
4 Fe,Co, Ni
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313042 The law of triads is applicable to -

1 C, N, O
2 H, O, N
3 Na, K, Rb
4 Cl, Br, I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313043 Atomic weight of Cl = 35.5 and of I = 127. According to Dobereiner's triad rule atomic weight of Br will be:

1 80
2 162.5
3 81.25
4 91.5
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313044 How many of the following sets represent Dobereiner's triads?
i. \({\mathrm{\mathrm{P}, \mathrm{As}, \mathrm{Bi}}}\)
ii. \({\mathrm{\mathrm{Ca}, \mathrm{Sr}, \mathrm{Ba}}}\)
iii. \({\mathrm{\mathrm{Cl}, \mathrm{Br}, \mathrm{I}}}\)
iv. \({\mathrm{\mathrm{Li}, \mathrm{Na}, \mathrm{K}}}\)

1 4
2 2
3 3
4 1
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313045 The graph of first ionisation enthalpy versus atomic number is as follows :
Which of the following statement is correct ?
supporting img

1 Alkali metals are at the maxima and noble gases at the minima.
2 Noble gases are at the maxima and alkali metals at the minima.
3 Transition elements are at the maxima.
4 Minima and maxima do not show any regular behaviour.