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Hydrogen is (1) Electropositive (2...

Hydrogen is (1) Electropositive (2) Electronegative (3) Neither electropositive nor electronegative (4) Both electro positive as well as electronegative

A

Electropositive

B

Electronegative

C

Neither electropositive nor electronegative

D

Both electro positive as well as electronegative

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Atomic number of 2 elements are given below. (symbols are not true). X = 17, Y=11 a) Write the electronic configuration of both: b) Which is electropositive? Which is electronegative? c) Name the chemical bond. d) Write th chemical formula of the compound formed by combining element X and Y.

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Knowledge Check

  • Choose the incorrect statement. : Chemical reactivity tends to be high in group 1 metals, lower in elements in middle and increases to maximum in the group 17., Halogens have very high negative electron gain enthalpy., Noble gases have large positive electron gain enthalpy., Decrease in electronegativities across a period is accompanied by an increase in non-metallic properties.

    A
    Chemical reactivity tends to be high in group 1 metals, lower in elements in middle and increases to maximum in the group 17.
    B
    Halogens have very high negative electron gain enthalpy.
    C
    Noble gases have large positive electron gain enthalpy.
    D
    Decrease in electronegativities across a period is accompanied by an increase in non-metallic properties.

  • Element X is strongly electropositive and element Y is strongly electronegative. Both are univalent. The compound formed would be

    A
    `X^+ Y^-`
    B
    `X^- Y^+`
    C
    `X - Y`
    D
    `X to Y`

  • Element X is strongly electropositive and element Y is strongly electronegative. Both are univalent. The compound formed would be

    A
    `X^(+)Y^(-)`
    B
    `X^(-)Y^(+)`
    C
    `X-Y`
    D
    `XrarrY`

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