Chemistry Test 88

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Chemistry Test 88

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Weekly Quiz Competition

Question 1
4 / -1

Which of following set of quantum numbers are not possible

A
n = 3, ℓ = 2, m = 0, s = –1/2

B
n = 3, ℓ = 2, m = –2, s = –1/2

C
n = 3, ℓ = 3, m = –3, s = –1/2

D
n = 3, ℓ = 0, m = 0, s = –1/2
Question 2
4 / -1

For 4p_y orbital : There are nodal plane = ... and azimuthal quantum number l = ...

A
1 , 0

B
0, 1

C
1, 1

D
2, 1

Solution

Question 3

4 / -1

Match the column :

	Column-I		Column-II
(A)	The orbital which has two angular nodes	(P)	4d_x²y²
(B)	The d orbital with zero nodal surfaces	(Q)	3d_z²
(C)	The orbital without angular nodes	(R)	4f
(D)	The orbital with three angular nodes	(S)	3s

(A)-P (B)-Q (C)-S (D)-R

(A)-S (B)-P (C)-Q (D)-R

(A)-Q (B)-P (C)-S (D)-R

(A)-P (B)-S (C)-Q (D)-R

Question 4
4 / -1

Which of the following exist as covalent crystal in solid state ?

A
Iodine

B
Silicon

C
Sulphur

D
Phosphorus
Question 5
4 / -1

For a solid with the following structure the co-ordination number of the point B is :-

A
3

B
4

C
5

D
6

Solution

B is in octehederal hole hence 6
Question 6
4 / -1

The number of atoms per unit cell in a simple cubic, fcc and bcc structure respectively are :-

A
1, 4, 2

B
1, 2, 4

C
8, 14, 9

D
8, 4, 2
Question 7
4 / -1

The total number of particles required to form a bcc unit cell will be :-

A
6

B
8

C
9

D
12
Question 8
4 / -1

CsBr has BCC type structure with edge length 4.3 pm. The shortest inter ionic distance in between Cs⁺ & Br^– is

A
3.72 pm

B
1.86 pm

C
7.44 pm

D
4.3 pm
Question 9
4 / -1

A crystalline solid has a cubic structure in which tungsten (W) atoms are located at the cube corners of the unit cell, oxygen atoms (O) at all edge centres and sodium (Na) at the centre of cube. The molecular formula of compound is :-

A
Na₂WO₄

B
NaWO₄

C
NaWO₃

D
NaWO₂
Question 10
4 / -1

In the body centered unit cell, the lattice points are present at the :-

A
Corners of unit cell only

B
Corners and centre of unit cell

C
Corners and centre of each face of the unit cell

D
Corners and at one set of faces of unit cell

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Chemistry Test 88

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Chemistry Test 88

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Question 1

n = 3, ℓ = 2, m = 0, s = –1/2

n = 3, ℓ = 2, m = –2, s = –1/2

n = 3, ℓ = 3, m = –3, s = –1/2

n = 3, ℓ = 0, m = 0, s = –1/2

Question 2

1 , 0

0, 1

1, 1

2, 1

Solution

Question 3

(A)-P (B)-Q (C)-S (D)-R

(A)-S (B)-P (C)-Q (D)-R

(A)-Q (B)-P (C)-S (D)-R

(A)-P (B)-S (C)-Q (D)-R

Question 4

Iodine

Silicon

Sulphur

Phosphorus

Question 5

3

4

5

6

Solution

Question 6

1, 4, 2

1, 2, 4

8, 14, 9

8, 4, 2

Question 7

6

8

9

12

Question 8

3.72 pm

1.86 pm

7.44 pm

4.3 pm

Question 9

Na2WO4

NaWO4

NaWO3

NaWO2

Question 10

Corners of unit cell only

Corners and centre of unit cell

Corners and centre of each face of the unit cell

Corners and at one set of faces of unit cell

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Na₂WO₄

NaWO₄

NaWO₃

NaWO₂