CHEMISTRY ONLINE TESTS 07

1 / 10

The correct order of bond strength is —

Double < Single < Triple

Double = Single < Triple

Single < Double < Triple

Triple < Double < Single

2 / 10

The number of σ and π bonds in benzene (C₆H₆) is —

6 σ and 3 π

18 σ and 3 π

12 σ and 3 π

9 σ and 3 π

3 / 10

Which of the following species is paramagnetic?

N₂

O₂

CO₂

F₂

4 / 10

The bond angle in H₂O molecule is approximately —

109.5°

104.5°

107.5°

120°

5 / 10

Which of the following has a linear shape?

BF₃

CO₂

NH₃

BeCl₂

6 / 10

In O₂ molecule, the bond order is —

7 / 10

Which of the following has the shortest bond length?

C–C

C≡C

C=C

All equal

8 / 10

The type of hybridization in CH₄ molecule is —

SP3

SP2

sp3d

9 / 10

Which of the following has zero dipole moment?

NH₃

H₂O

CH₂Cl₂

BF₃

10 / 10

The chemical messenger at neuromuscular junction is:

Dopamine

Serotonin

Adrenaline

Acetylcholine

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CHEMISTRY ONLINE TESTS 07

online chemistry test 07 for JEE neet and eapcet exams

About Saheb Shaik