General
Easy
Chemistry-

In compounds of type E C l subscript 3 end subscript, where E equals B comma P, As or B i, the angles C l minus E minus C l for different E are in the order

Chemistry-General

  1. B less than P equals A s equals B i    
  2. B less than P less than A s less than B i    
  3. B greater than P greater than A s greater than B i    
  4.  B greater than P equals A s equals B i    

    Answer:The correct answer is: B greater than P greater than A s greater than B i4 N a C l plus K subscript 2 end subscript C r subscript 2 end subscript O subscript 7 end subscript plus 3 H subscript 2 end subscript S O subscript 4 end subscript rightwards arrow
    As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.

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    General
    chemistry-

    On heating ammonium dichromate, the gas evolved is

    left parenthesis N H subscript 4 end subscript right parenthesis subscript 2 end subscript C r subscript 2 end subscript O subscript 7 end subscript rightwards arrow N subscript 2 end subscript plus C r subscript 2 end subscript O subscript 3 end subscript plus 4 H subscript 2 end subscript O

    On heating ammonium dichromate, the gas evolved is

    chemistry-General
    left parenthesis N H subscript 4 end subscript right parenthesis subscript 2 end subscript C r subscript 2 end subscript O subscript 7 end subscript rightwards arrow N subscript 2 end subscript plus C r subscript 2 end subscript O subscript 3 end subscript plus 4 H subscript 2 end subscript O
    General
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    Ammonia on reaction with hypochlorite anion, can form

    3 N H subscript 3 end subscript plus O C l to the power of minus end exponent rightwards arrow N H subscript 2 end subscript minus N H subscript 2 end subscript plus N H subscript 4 end subscript C l plus O H to the power of minus end exponent

    Ammonia on reaction with hypochlorite anion, can form

    chemistry-General
    3 N H subscript 3 end subscript plus O C l to the power of minus end exponent rightwards arrow N H subscript 2 end subscript minus N H subscript 2 end subscript plus N H subscript 4 end subscript C l plus O H to the power of minus end exponent
    General
    chemistry-

    Orthophosphoric acid represents the molaysis condition due to

    Orthophosphoric acid represents the molaysis condition due to

    chemistry-General
    General
    chemistry-

    One mole of calcium phosphide on reaction with excess water gives

    C a subscript 3 end subscript P subscript 2 end subscript plus 3 H subscript 2 end subscript O rightwards arrow 3 C a left parenthesis O H right parenthesis subscript 2 end subscript plus 2 P H subscript 3 end subscript

    One mole of calcium phosphide on reaction with excess water gives

    chemistry-General
    C a subscript 3 end subscript P subscript 2 end subscript plus 3 H subscript 2 end subscript O rightwards arrow 3 C a left parenthesis O H right parenthesis subscript 2 end subscript plus 2 P H subscript 3 end subscript
    General
    chemistry-

    Which of the following elements forms a strongly acidic oxide

    Acidic character of oxides decreases down the group.

    Which of the following elements forms a strongly acidic oxide

    chemistry-General
    Acidic character of oxides decreases down the group.
    General
    chemistry-

    Which of the following is manufactured from the molecular nitrogen by bacteria

    Which of the following is manufactured from the molecular nitrogen by bacteria

    chemistry-General
    General
    chemistry-

    Which of the following compound is tribasic acid

    K subscript 2 end subscript S O subscript 4 end subscript plus 2 N a subscript 2 end subscript S O subscript 4 end subscript plus stack 2 C r O subscript 2 end subscript C l subscript 2 end subscript plus 3 H subscript 2 end subscript O with text Chromyl chloride end text below it is ionizes in three steps because three –OH group are present

    Which of the following compound is tribasic acid

    chemistry-General
    K subscript 2 end subscript S O subscript 4 end subscript plus 2 N a subscript 2 end subscript S O subscript 4 end subscript plus stack 2 C r O subscript 2 end subscript C l subscript 2 end subscript plus 3 H subscript 2 end subscript O with text Chromyl chloride end text below it is ionizes in three steps because three –OH group are present
    General
    chemistry-

    In group V-A of the periodic table nitrogen forms only a trihalide but other elements form pentahalides also. The reason is

    Acidic character of oxides decreases down the group.

    In group V-A of the periodic table nitrogen forms only a trihalide but other elements form pentahalides also. The reason is

    chemistry-General
    Acidic character of oxides decreases down the group.
    General
    chemistry-

    Sides of match box have coating of

    Sides of match box have coating of

    chemistry-General
    General
    physics

    A ball fills co surface from 10 m height and rebounds tis .2.5 m If duration of contact with floor is .0.01sec the average aceleration during contact is.ms-2

    A ball fills co surface from 10 m height and rebounds tis .2.5 m If duration of contact with floor is .0.01sec the average aceleration during contact is.ms-2

    physicsGeneral
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    A vehicle of 100 kg is moving with u velocity of 5 m/s. To slop it in /10 sec, the required force in opposite direction is N

    A vehicle of 100 kg is moving with u velocity of 5 m/s. To slop it in /10 sec, the required force in opposite direction is N

    physicsGeneral
    General
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    The linear momentum P of a particle varies with the time as follows. P equals a plus b t squared Where a and b are constants. The net force acting on the particle is……

    The linear momentum P of a particle varies with the time as follows. P equals a plus b t squared Where a and b are constants. The net force acting on the particle is……

    physicsGeneral
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    Newton's third law of motion kids to the law of conservation of

    Newton's third law of motion kids to the law of conservation of

    physicsGeneral
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    average force necessary to stop a hammer with 25NS momentum in 0.04sec  is ……. N

    average force necessary to stop a hammer with 25NS momentum in 0.04sec  is ……. N

    physicsGeneral
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    A body of mass 0.05 kg is filling with acceleration 9.4ms-2. The force caried by air opposite to motion is N(g=9.8 ms-2)

    A body of mass 0.05 kg is filling with acceleration 9.4ms-2. The force caried by air opposite to motion is N(g=9.8 ms-2)

    physicsGeneral