Chemistry Test 77

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Chemistry Test 77

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Weekly Quiz Competition

Question 1
4 / -1

The electronic configuration of four elements L, P, Q, R are given in brackets

L(1s²,2s²,2p⁴) ; Q (1s²,2s²,2p⁶,3s²,3p⁵)

P(1s²,2s²,2p⁶,3s¹) ; R (1s²,2s²,2p⁶,3s²)

The formula of ionic compounds that can be formed between these element are -

A
L₂P, RL, PQ and R₂Q

B
LP, RL, PQ and RQ

C
P₂L, RL, PQ and RQ₂

D
LP, R₂L, P₂Q and RQ
Question 2
4 / -1

Select the correct order :-

A
Bond length    – O₂⁺² < O₂⁺ < O₂

B
Covalent character –  PbF₂ < PbCl₂ < PbBr₂

C
Boiling point    – NH₃ < HF < H₂O

D
All are correct
Question 3
4 / -1

Select the correct statement.:-

A
Volatile nature C₂H₅OH < C₂H₅SH

B
Solubility NaCl > CuCl

C
Bond strength H.......F > H......O > H...N

D
All are correct
Question 4
4 / -1

Which of the following sets of species does not follow octet rule :-

A
CO, PCl₅, PCl₃, AlCl₃

B
AlCl₃, BF₃, PCl₅, SF₆

C
H₂O, NH₃, B₂H₆, SnCl₂

D
ZnCl₂, CO₂, PbCl₄, NH₃
Question 5
4 / -1

The number of sigma and π bonds in 1-butene –3–yne are-

A
5 sigma and 5 pi

B
7 sigma and 3 pi

C
8 sigma and 2 pi

D
6 sigma and 4 pi
Question 6
4 / -1

Shape of XeF₄ molecule is :-

A
Linear

B
Pyramidal

C
Tetrahedral

D
Square planar
Question 7
4 / -1

Dipole moment correct order is :

(I) m-dichlorobenzene

(II) o-dichlorobenzene

(III) p-dichlorobenzene

A
I < II < III

B
I < III < II

C
III < I < II

D
III < II < I
Question 8
4 / -1

Between two atom maximum number of σ bond formed is :

A
2

B
4

C
3

D
1

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Chemistry Test 77

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Chemistry Test 77

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Question 1

L2P, RL, PQ and R2Q

LP, RL, PQ and RQ

P2L, RL, PQ and RQ2

LP, R2L, P2Q and RQ

Question 2

Bond length – O2+2 < O2+ < O2

Covalent character – PbF2 < PbCl2 < PbBr2

Boiling point – NH3 < HF < H2O

All are correct

Question 3

Volatile nature C2H5OH < C2H5SH

Solubility NaCl > CuCl

Bond strength H.......F > H......O > H...N

All are correct

Question 4

CO, PCl5, PCl3, AlCl3

AlCl3, BF3, PCl5, SF6

H2O, NH3, B2H6, SnCl2

ZnCl2, CO2, PbCl4, NH3

Question 5

5 sigma and 5 pi

7 sigma and 3 pi

8 sigma and 2 pi

6 sigma and 4 pi

Question 6

Linear

Pyramidal

Tetrahedral

Square planar

Question 7

I < II < III

I < III < II

III < I < II

III < II < I

Question 8

2

4

3

1

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L₂P, RL, PQ and R₂Q

P₂L, RL, PQ and RQ₂

LP, R₂L, P₂Q and RQ

Bond length – O₂⁺² < O₂⁺ < O₂

Covalent character – PbF₂ < PbCl₂ < PbBr₂

Boiling point – NH₃ < HF < H₂O

Volatile nature C₂H₅OH < C₂H₅SH

CO, PCl₅, PCl₃, AlCl₃

AlCl₃, BF₃, PCl₅, SF₆

H₂O, NH₃, B₂H₆, SnCl₂

ZnCl₂, CO₂, PbCl₄, NH₃