Chemistry Test

Result

Chemistry Test - 19

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Weekly Quiz Competition

Question 1
1 / -0

A

8

B

7

C

6

D

9
Question 2
1 / -0

A

8

B

7

C

6

D

9
Question 3
1 / -0

A

Option B

B

Option C

C

Option D

D

Option A
Question 4
1 / -0

If the freezing point of a 0.01 molal aqueous solution of a cobalt (III) chloride-ammonia complex(which behaves as a strong electrolyte) is – 0.0558 deg C, the number of chloride(s) in the coordination sphere of the complex is[Kf of water = 1.86 K kg mol^–1]

A

4

B

2

C

3

D

1
Question 5
1 / -0

A body of mass 10 mg is moving with a velocity of 100 ms^–1. The wavelength of de-Broglie wave associated with it would be (Note : h = 6.63 x 10^–34 Js)

A

6.63 x 10^-31 m

B

6.63 x 10^-37 m

C

6.63 x 10^-34 m

D

6.63 x 10^-35 m
Question 6
1 / -0

Find the thermodynamic processes given below with the expression given in option :Freezing of water at 273 K and 1 atm

A

ΔG = 0

B

ΔU = 0

C

w = 0

D

q = 0
Question 7
1 / -0

A

Option A

B

Option B

C

Option C

D

Option D
Question 8
1 / -0

Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is(are)

A

All of these

B

Acidified aqueous CuSO4 is used as electrolyte

C

Pure Cu deposits at cathode

D

Impurities settle as anode – mud
Question 9
1 / -0

Find the anionic species given that are present in the ore(s) given in options :Hydroxide

A

Siderite

B

Malachite

C

Calamine

D

Argentite
Question 10
1 / -0

A bivalent metal has an equivalent mass of 32. The molecular mass of the metal nitrate is

A

188

B

I92

C

182

D

168