Chemistry Test 139

Result

Chemistry Test 139

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following compound will make precipitate most readily with

A

B

C

D
Question 2
4 / -1

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

A
Polyhalogens

B
Ferrocene

C
Fullerens

D
Freons
Question 3
4 / -1

How much of NaOH is required to neutralise 1500 cm³ of 0.1 N HCl ? (Na = 23)

A
40 g

B
4 g

C
6 g

D
60 g
Question 4
4 / -1

The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

A
6.023 × 10¹⁹

B
1.084 × 10¹⁸

C
4.84 × 10¹⁷

D
6.023 × 10²³
Question 5
4 / -1

The correct representation of Charle’s law is given by

A

B

C

D
Question 6
4 / -1

At high pressure, the compressibility factor ‘Z’ is equal to

A
unity

B

C

D
Zero
Question 7
4 / -1

The ratio of for inert gases is

A
1.33

B
1.66

C
2.13

D
1.99
Question 8
4 / -1

The structure of TlCl is similar to CsCl. What would be the radius ratio in TlCl ?

A
0.155—0.225

B
0.225—0.414

C
0.414—0.732

D
0.732—1.000
Question 9
4 / -1

In the sphalerite (ZnS) structure, S^2- ions form a face- centred cubic lattic. Then Zn²⁺ ions are present on the body diagonals at

A
(1,3)rd of the distance

B
(1,4)th of the distance

C
(1,6)th of the distance

D
(1,8)th of the distance
Question 10
4 / -1

Which substance shows antiferromagnetism ?

A
ZrO₂

B
CdO

C

D