NEET Test Series-2021 to 2022-NEET Chemistry MCQS / Coordinate or Dative Bonding Sample Test,Sample questions

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Question: 
 BF3 forms an adduct with NH3 because

1.nitrogen has a high electronegativity

2.boron has a high electronegativity

3.boron has an empty p-orbital and nitrogen has one lone pair of electrons

4.boron has an electropositive character

Question: 
 Which of the following compounds contain all three types: ionic, covalent and dative bonds?

1.CuSO4.5H2O

2.Solid N2O5

3.(NH4)2SO4

4.All

Question: 
 Which of the following compounds has electrovalent linkage?

1.CH3Cl

2.NaCl

3.CH4

4.Cl2

Question: 
A molecule with multiple covalent bonds is

1.C2H4

2.H2

3.F2

4.N2

Question: 
Each of the following pairs of chemical species will combine. Which of the following combinations is best explained by the coordinate covalent bond?

1.H2 + I2

2.Mg +O2

3.Cl + Cl

4.H+ + H2O

Question: 
Protons play an important role in which type of bonding?

1.electrovalent

2.hydrogen

3.covalent

4.coordinate

Question: 
The type of bond formed during the hydration of cation is

1.ionic

2.covalent

3.electrostatic

4.dative bond

Question: 
The weakest bond is

1.Hydrogen

2.Van der Waals

3.Covalent

4.Coordinate

Question: 
When two species A and B form an electron-pair bond and A does not provide its electrons for bonding, the bond present between A and B must be

1.Hydrogen

2.ionic

3.covalent

4.dative

Question: 
Which of the following bonds has the most polar character?

1.C-O

2.C-Br

3.C-S

4.C-F

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