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The pair of exothermic hydrides of VI A ...

The pair of exothermic hydrides of VI A group are 

A

`H_(2)O, H_(2)S`

B

`H_(2)O, H_(2)Se`

C

`H_(2)Se, H_(2)Te`

D

`H_(2)S, H_(2)Te`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • The pair of exothermic hydrides of VI A group arc

    A
    `H_(2)O, H_(2)S`
    B
    `H_(2)O, H_(2)Se`
    C
    `H_(2)Se, H_(2)Te`
    D
    `H_(2)S, H_(2)Te`

  • (A): Thermal stability of the hydrides of VIA group elements decreases from H_(2)O to H_(2)Po (R): The heats of dissociation of M-H bond of hydrides of VIA group decreases down the group

    A
    Both A & R are true, R is the correct explanation of A
    B
    Both A & R are true, R is not correct explanation of A
    C
    A is true, R is false
    D
    A is false, R is true

  • (A) Thermal stability of the hydrides of VIA group elements decreases from H_(2) O to H_(2) Po (R ) The heats of disociation of M-H bond of hydrides of VIA group decreases down the group

    A
    Both (A) and (R ) are true and (R ) is the correct explanation of (A)
    B
    Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
    C
    (A) is true but (R ) is false
    D
    Both (A) and (R ) are false

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    The order of electron gain enthalpy of VI A group elements is

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