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Genesis of Periodic Classification

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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313046 Which of the following statement is wrong about Lother Meyer’s plot between atomic volume against atomic weight ?

1 The most strongly electropositive alkali metals occupy peaks on the curve.

2 The strongly electronegative halogen atoms occupy ascending positions on the curve.

3 The less strongly electropositive alkaline earth metals occupy descending positions on the curve.

4 Lother -Meyer proposed that physical properties of the elements are a periodic function of their atomic numbers.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313047 Elements which occupied position in the Lother Meyer curve, on the peaks, were

1 Alkali metals

2 Highly electro positive elements

3 Elements having large atomic volume

4 All

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313048 The element cited as an example to prove that validity of Mendeleev’s periodic law is

1 Germanium

2 Scandium

3 Gallium

4 All

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313049 Mendeleev's classification was a great improvement over contemporary tabulation of the elements by Newlands and Lothar Meyer because
(I) it grouped the elements together more accurately in vertical columns.
(II) it left gaps for elements which were yet to be discovered in nature.
(III) it made possible the prediction of the properties of elements that had not yet been discovered.
(IV) it predicted the atomic masses of certain elements which were incorrectly determined.

1 (I), (II), (III), and (IV)

2 (II), (III), and (IV)

3 (II) and (III)

4 (II) and (IV)

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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313046 Which of the following statement is wrong about Lother Meyer’s plot between atomic volume against atomic weight ?

1 The most strongly electropositive alkali metals occupy peaks on the curve.

2 The strongly electronegative halogen atoms occupy ascending positions on the curve.

3 The less strongly electropositive alkaline earth metals occupy descending positions on the curve.

4 Lother -Meyer proposed that physical properties of the elements are a periodic function of their atomic numbers.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313047 Elements which occupied position in the Lother Meyer curve, on the peaks, were

1 Alkali metals

2 Highly electro positive elements

3 Elements having large atomic volume

4 All

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313048 The element cited as an example to prove that validity of Mendeleev’s periodic law is

1 Germanium

2 Scandium

3 Gallium

4 All

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313049 Mendeleev's classification was a great improvement over contemporary tabulation of the elements by Newlands and Lothar Meyer because
(I) it grouped the elements together more accurately in vertical columns.
(II) it left gaps for elements which were yet to be discovered in nature.
(III) it made possible the prediction of the properties of elements that had not yet been discovered.
(IV) it predicted the atomic masses of certain elements which were incorrectly determined.

1 (I), (II), (III), and (IV)

2 (II), (III), and (IV)

3 (II) and (III)

4 (II) and (IV)

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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313046 Which of the following statement is wrong about Lother Meyer’s plot between atomic volume against atomic weight ?

1 The most strongly electropositive alkali metals occupy peaks on the curve.

2 The strongly electronegative halogen atoms occupy ascending positions on the curve.

3 The less strongly electropositive alkaline earth metals occupy descending positions on the curve.

4 Lother -Meyer proposed that physical properties of the elements are a periodic function of their atomic numbers.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313047 Elements which occupied position in the Lother Meyer curve, on the peaks, were

1 Alkali metals

2 Highly electro positive elements

3 Elements having large atomic volume

4 All

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313048 The element cited as an example to prove that validity of Mendeleev’s periodic law is

1 Germanium

2 Scandium

3 Gallium

4 All

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313049 Mendeleev's classification was a great improvement over contemporary tabulation of the elements by Newlands and Lothar Meyer because
(I) it grouped the elements together more accurately in vertical columns.
(II) it left gaps for elements which were yet to be discovered in nature.
(III) it made possible the prediction of the properties of elements that had not yet been discovered.
(IV) it predicted the atomic masses of certain elements which were incorrectly determined.

1 (I), (II), (III), and (IV)

2 (II), (III), and (IV)

3 (II) and (III)

4 (II) and (IV)

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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313046 Which of the following statement is wrong about Lother Meyer’s plot between atomic volume against atomic weight ?

1 The most strongly electropositive alkali metals occupy peaks on the curve.

2 The strongly electronegative halogen atoms occupy ascending positions on the curve.

3 The less strongly electropositive alkaline earth metals occupy descending positions on the curve.

4 Lother -Meyer proposed that physical properties of the elements are a periodic function of their atomic numbers.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313047 Elements which occupied position in the Lother Meyer curve, on the peaks, were

1 Alkali metals

2 Highly electro positive elements

3 Elements having large atomic volume

4 All

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313048 The element cited as an example to prove that validity of Mendeleev’s periodic law is

1 Germanium

2 Scandium

3 Gallium

4 All

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313049 Mendeleev's classification was a great improvement over contemporary tabulation of the elements by Newlands and Lothar Meyer because
(I) it grouped the elements together more accurately in vertical columns.
(II) it left gaps for elements which were yet to be discovered in nature.
(III) it made possible the prediction of the properties of elements that had not yet been discovered.
(IV) it predicted the atomic masses of certain elements which were incorrectly determined.

1 (I), (II), (III), and (IV)

2 (II), (III), and (IV)

3 (II) and (III)

4 (II) and (IV)

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