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Which of the following Lewis diagram is/are incorrect?

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Important Questions on Chemical Bonding and Molecular Structure

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 43
Which of the following has a geometry different from the other three species (having the same geometry) ?
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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 44
If ethylene molecule lies in X-Y plane then nodal planes of the π-bond will lie in
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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 45

Which of the following compounds would have significant intermolecular hydrogen bonding?

HF,CH3OH,N2O4,CH4

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 46
Which of the following is incorrect about NaCl structure ?
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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 47
Stability of Cu+ and Ag+ halide complexes are in order :
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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 48
The CORRECT sequence of the increasing covalent character is represented by:
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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-2>Q 1
In compound HC≡C-CH2-CH=CH-CH3 ,C2-C3 bond is the type of:
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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-2>Q 3
AB is predominantly ionic as A+ B– if :