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The bond angle in PH3 is :...

The bond angle in ` PH_3 ` is :

A

much lesser than `NH_3`

B

equal to `NH_3`

C

much greater than `NH_3`

D

slightly more than `NH_3`

Text Solution

Verified by Experts

The correct Answer is:
A
Bond angles diecrease on moving down the group for similar compounds having central atom belonging to same group i.e.,
` NH_(3) lt pH_3 lt AsH_3 lt SbH_3` .
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The H-H-H bond angle in NH_3 is greater than the H-As-H bond angle in AsH_3 .

Explain why bond angle of NH_(3) is greater than NF_(3) while bond angle of PH _(3) is less than that of PF _(3),

Knowledge Check

  • Assertion(A) - The bond angle around PBr_3 is larger than that in PH_3 but bond angle of NB r_3 is less than that of NH_3 Reason(R ) : Atomic size of Br is smaller than that P atom because of larger nuclear charge

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

  • The bond angle in PH _(3) would be expected to be close to

    A
    `90^(@)`
    B
    `105^(@)`
    C
    `109^(@)`
    D
    `120^(@)`

  • Consider the following statements: (I) In OSF_4, F_("eq")-hatS - F_("eq") gt F_("eq") - hatS = O (II) The bond angle of PF_3 is greater than PH_3 but the bond angle of NF_3 is lesser than NH_3 (III) The % s-character in the orbital containing lone pair of H_2O molecule is 30%. [ hat((HOH)) = 104^@5 and cos(104.5) = -0.25] Which of the following statements "is"//"are" correct?

    A
    I, II
    B
    II, III
    C
    I, III
    D
    I, II, III

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    Why the H – P – H bond angle in PH_(3) is less than H – N – H bond angle in NH_(3) ?

    Why is the bond angle in PH_(3) molecule lesser than that in NH_(3) molecule?

    The CNC bond angle in CH_3NCS is:

    Assertion . The bond anlge of PBr_(3) is greater than that of PH_(3) but bond angle of NBr_(3) is less than that of NH_(3) . Reason .Electronegativity of phosphorus atom is less than that of nitrogen .

    The bond angles in NH_(3), NF_(3) and NCl_(3) are in the order:

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