Statement 1: Every element has a unique valency.
Statement 2: Some elements have the tendency of both giving and accepting electrons.

only statement 1 is true

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only statement 2 is true

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both the statements are true

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both the statements are false

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Solution

The correct option is B
only statement 2 is true

The statement 1 is false. Many elements can have more than one valencies. Examples- Phosphorus has a variable valency, 3 and 5 it means that it can either gain 3 electrons or lose 5 electrons.

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Similar questions

Statement-1: An element of valency 2 can combine with an element of valency 1.
Statement-2: To write the chemical formula, one must know the symbol and valency of the elements.

Q. Each element present in the periodic table has a unique valency.

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, the most probable oxidation number is

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Statement 2: The outer energy level of the halogen family has a tendency to add one electron to itself.

Q. The element having electronic configuration

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{2}

has valency :

Q. Assertion :Element X has electronic configuration 2, 8, 18, 8, 1. X will be a reducing agent. Reason: X have tendency to loose one electron.

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Statement 1: Every element has a unique valency. Statement 2: Some elements have the tendency of both giving and accepting electrons.

The correct option is B only statement 2 is true The statement 1 is false. Many elements can have more than one valencies. Examples- Phosphorus has a variable valency, 3 and 5 it means that it can either gain 3 electrons or lose 5 electrons.

Statement 1: Every element has a unique valency.
Statement 2: Some elements have the tendency of both giving and accepting electrons.

The correct option is B
only statement 2 is true

The statement 1 is false. Many elements can have more than one valencies. Examples- Phosphorus has a variable valency, 3 and 5 it means that it can either gain 3 electrons or lose 5 electrons.