Chemical Bonding and Molecular Structure Test 55

Result

Chemical Bonding and Molecular Structure Test 55

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Weekly Quiz Competition

Question 1
1 / -0

Correct set of species with zero dipole moment is :
(i) $$CO_{2}$$ (ii) $$COCl_{2}$$ (iii)$$ CH_{2}Cl_{2}$$ (iv) $$BCl_{3}$$

A
(i) and (iv)

B
(ii) and (iv)

C
(iii) and (iv)

D
(i), (iii) and (iv)

Solution
Question 2
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Which of the following has maximum dipole moment?

A
$$NCl_3$$

B
$$NBr_3$$

C
$$NH_3$$

D
$$NI_3$$

Solution
Question 3
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Select the correct statement :

A
$${HSO_5}^-$$ ion has one $$S-O-H$$ linkage

B
Number of $$B-O-B$$ linkages in borax is equal to number of $$P-O-P$$ linkages in $$P_4O_{10}$$

C
Hybridization of both sulphur in $$H_2S_2O_5$$ (pyrosulphurous acid) is same but oxidation state of both sulphur are different

D
Tetra-polyphosphoric acid has four $$P-O-P$$ and no $$P-P$$ linkage

Solution
Question 4
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Which of the following molecules will have polar bonds but zero dipole moment?

A
$$O_{2}$$

B
$$CHCl_{3}$$

C
$$CF_{4}$$

D
none of these

Solution
Question 5
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Which of the following statement is/are correct ?

A
All carbon to carbon bonds contains a sigma bond and one or more $$\pi$$-bonds

B
All carbon to carbon bonds are sigma bonds

C
All oxygen to hydrogen bonds are hydrogen bonds

D
All carbon to hydrogen bonds are sigma bonds

Solution
Question 6
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Which will have zero dipole moment?

A

B

C

D
Both (B) and (C)

Solution
Question 7
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Which of the following has net dipole moment?

A
$$CCl_{4}$$

B
$$BF_{3}$$

C
$$NH_{3}$$

D
$$CO_{2}$$
Question 8
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Hydrogen bonding is not present in?

A
Glycerine

B
Water

C
Hydrogen sulphide

D
Hydrogen fluoride
Question 9
1 / -0

Number of lone pairs present on central atom of $$I_{3}^{-}$$ are:

A
$$9$$

B
$$1$$

C
$$6$$

D
$$3$$

Solution

$${I_{3}}^{-}$$ has a linear structure. The number of lone pairs on central atom is $$3$$.
Question 10
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Directions For Questions

Hybridisation involves the mixing of orbitals having comparable energies of same atom. Hybridised orbitals perform efficient overlapping than overlapping by pure s,p or d orbitals .

...view full instructions

Consider the following compounds and select the incorrect statement from the following :
$$NH_{3}, PH_{3}, H_{2}S, SO_{2}, SO_{3}, BF_{3}, PCl_{3}, IF_{7}, P_{4}, H_{2}$$

A
Six molecules out of given compound involves hybridisation

B
Three molecules are hypervalent compounds

C
Six molecules out of above compounds are non-planar in structure

D
Two molecules out of given compounds involves $$(d \pi- p \pi)$$ bonding as well as also involves $$(p \pi - p \pi)$$ bonding