Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 53

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The bond energies for single covalent bonds of hydrogen atoms with elements $A, B, C$ and $D$ are $140, 228, 325$ and $190 kJ {mol}^{- 1}$ , respectively. The element which has the smallest atom is:

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Important Questions on Chemical Bonding and Molecular Structure

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Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 54

Which is the largest bond angle around central oxygen atom?

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Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 55

A molecule

{AB}_{4}

is isostructural with non-polar

{CH}_{4}

. The bond moment of

A - B

is

1.2 D

and bond length is

1 \overset{\circ}{A}

. The charge developed on the central atom of

{AB}_{4}

(neglecting any orbital dipoles), is:

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Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 56

Two compounds given are,

{PX}_{2} Y_{3}

and

{PX}_{3} Y_{2}

(where,

P =

Phosphorous atom,

X

and

Y

are monovalent atoms). If all

' X'

atoms are replaced by

' Z'

atoms (

Z

is a monovalent) and electronegativity order for the three atoms is

X > Y > Z

, then, the dipole moment of the product obtained after displacing

X

by

Z

will be:

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Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 57

What is the correct order of the dipole moment for the compounds given below?

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Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 58

The liquid which is not deflected by a non-uniform electrostatic field is:

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Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 59

Which of the following is incorrect?

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Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 60

Assuming the Hund's rule violated, the bond order and magnetic nature of the diatomic molecule of

B_{2}

is:

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Chemistry Crash Course NEET>Chapter 13 - Chemical Bonding and Molecular Structure>Level 3>Q 61

Among the following pairs of molecules, the strongest intermolecular hydrogen bond is present between: