Chemical Bonding and Molecular Structure Test 47

Result

Chemical Bonding and Molecular Structure Test 47

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Weekly Quiz Competition

Question 1
1 / -0

Among the species $$C{O_2}C{H_3}CO{O^ - },CO,C{O_3}^{2 - }$$ HCHO which has the weakest carbon oxygen bond

A
$$C{O_2}$$

B
$$C{H_3}CO{O^ - }$$

C
$$CO$$

D
$$C{O_3}^{2 - }$$

Solution
Question 2
1 / -0

The interaction energy between two temporary dipoles is proportional to (where r is the distance between the two particles)

A
$$1/r^4$$

B
$$1/r^2$$

C
$$1/r^5$$

D
$$1/r^6$$

Solution
Question 3
1 / -0

In $$Fe{(CO)}_{5}$$, the $$Fe-C$$ bond possess:

A
$$\sigma$$-character only

B
$$\pi$$-character only

C
both $$\sigma$$ and $$\pi$$ characters

D
ionic character

Solution
Question 4
1 / -0

Carbon - halogen bond is most susceptible to cleave in

A
Benzyl bromide

B
Bromobenzene

C
Vinyl bromide

D
Benzyl chloride

Solution
Question 5
1 / -0

Coordinate bond is not present in

A
$$BF_{4}^{-}$$

B
$$CO_{3}^{2-}$$

C
$$AlCl_{4}^{-}$$

D
$$Any\ of\ these$$

Solution
Question 6
1 / -0

Which of the following has non-zero dipole moment?

A

B

C
Trans-2-butene

D
Boron trichloride
Question 7
1 / -0

Which of the following combinations is not allowed (assumed z-axis is internuclear axis).

A
$$2s$$ and $$2s$$

B
$$2p_{x}$$ and $$2p_{x}$$

C
$$2s$$ and $$2p_{x}$$

D
$$2p_{x}$$ and $$2p_{y}$$

Solution
Question 8
1 / -0

The compound with lowest dipole moment is.

A
$$C{H_3}F$$

B
$$C{H_3}CI$$

C
$$C{H_3}Br$$

D
$$CH{Cl}_3$$

Solution
Question 9
1 / -0

Which of the following compounds has the largest
dipole moment?

A
$$CH_3-Cl$$

B
$$CH_2-Cl_2$$

C
$$CH-Cl_3$$

D
$$C-Cl_4$$

Solution
Question 10
1 / -0

$$\rm{O-H}$$ bond length is $$1 \mathop {\text{A}}\limits^ \circ $$ and it's dipole moment is $$1.5D$$. So the fraction of the charge on oxygen is

A
$$0.3125$$

B
$$0.4$$

C
$$0.5$$

D
$$0.246$$

Solution