Chemical Bonding and Atomic Structure MCQs for NEET — Chemistry Questions with Answers

The electron-deficient molecules can act as Lewis acids

The canonical structures have no real existence

Every AB₅ molecule does, in fact, have square pyramid structure

Multiple bonds are always shorter than corresponding single bonds

2

3

4

1

SCl₄           

 ${\mathrm{SO}}_4^{2-}$               

${\mathrm{PO}}_4^{3-}$                 

 ${\mathrm{NH}}_4^{+}$

 $H_{2}O$>$H_2{O}_2>HF>H_{2S}$

$HF\ge H_2{O}_2>H_{2}O>H_{2}S$

HF>$H_{2}O>H_{2}S>H_2{O}_2$

HF>$H_2{O}_2>H_{2}O>H_{2}S$

it does not contain plane of symmetry

 $\text{'}\mathrm{Cl}-\widehat{\mathrm{Se}}-\mathrm{Cl}\text{'} \mathrm{bond} \mathrm{is} \mathrm{greater} \mathrm{than} \text{'}\mathrm{Cl}-\widehat{\mathrm{Se}}-\mathrm{O}\text{'} \mathrm{bond} \mathrm{angle}$

Lone pair has greater than 33.3% s-character

Central atom used one d-orbital in bonding

 $C{H}_3 COOH and H_{2}O$

Phenol and $C{H}_4$

 $CH{F}_3 and acetone$

 $P{H}_{3 }and HF$

If electronegativity of surrounding element 'X' is less than 2.5, then central carbon atom used almost 33% s-character in their hybrid bonding orbitals

 If electronegativity of surrounding element 'X' is more than 2.5, then central carbon atom used almost 25% s-character in their hybrid bonding orbitals

If 'X' is 'F', then species should be polar and pyramidal

If 'X' is H, then species should be polar and planar

F is more electronegativity than oxygen 

Be is more electronegativity than oxygen 

 $H_{2}O$ molecule is linear and Be$F_2$ is bent 

 $Be{F}_2$ molecule is linear and $H_{2}O$ is bent

14         

12         

8         

16

(i) and (iv) 

(ii) and (iv) 

(iii) and (iv) 

(i) , (iii) and (iv)