Chemistry Test 63

Result

Chemistry Test 63

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

An element (atomic mass 100g/mol) having bcc structure has until cells edge 400 pm. Then density of the element is:

A
10.376g/cm³

B
5.188g/cm³

C
7.289g/cm³

D
2.144g / cm³
Question 2
4 / -1

Identify the correct order of the size of the following:

A
Ca² + < K⁺ < A^r < S²− < Cl⁻

B
Ca²+ <K⁺<Ar <C l − <S²⁻

C
Ca²- <K⁺<Ar <C l + <S²⁻

D
Ca²+ <Ar <K⁺<Cl⁻<S²⁻
Question 3
4 / -1

The total number of orbitals associated with the principal quantum number 5 is

A
5

B
10

C
20

D
25
Question 4
4 / -1

A reaction at 1 bar is non-spontaneous at low temperature but becomes spontaneous at high temperature. Identify the correct statement about the reaction among the following:

A
Both ΔH and ΔS are negative.

B
Both ΔH and ΔS are positive

C
ΔH is positive while ΔS is negative

D
ΔH is negative while ΔS is positive
Question 5
4 / -1

The solubility of N₂ in water at 300 K and 500 torr partial pressure is 0.01 gL⁻¹. The solubility (in gL⁻¹) at 750 torr partial pressure is:

A
0.0075

B
0.015

C
0.02

D
0.005
Question 6
4 / -1

For the reaction, A(g) + B(g) → C(g) + D(g), ΔH^∘ and ΔS^∘ are respectively, –29.8 kJ mol⁻¹ and −0.100kJK⁻¹. The equilibrium constant for the reaction at 298 K is:

A
1.0 × 10⁻¹⁰

B
1.0 × 10⁺¹⁰

C
10

D
1
Question 7
4 / -1

What will occur if a block of copper metal is dropped into a beaker containing a solution of 1M ZnSO₄?

A
The copper metal will dissolve and zinc metal will be deposited.

B
The copper metal will dissolve with evolution of hydrogen gas.

C
The copper metal will dissolve with evolution of oxygen gas.

D
No reaction will occur.
Question 8
4 / -1

A particular adsorption process has the following characteristics: (i) It arises due to van der Waals forces and (ii) it is reversible. Identify the correct statement that describes the above adsorption process:

A
Enthalpy of adsorption is greater than 100 kJ mol⁻¹

B
Energy of activation is low.

C
Adsorption is monolayer.

D
Adsorption increases with increase in temperature.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Chemistry Test 63

Result

Chemistry Test 63

Score

-

Rank

-

SHARING IS CARING

Question 1

10.376g/cm3

5.188g/cm3

7.289g/cm3

2.144g / cm3

Question 2

Ca2 + < K+ < Ar < S2− < Cl−

Ca2 + <K+ <Ar <C l − <S2−

Ca2 - <K+ <Ar <C l + <S2−

Ca2 + <Ar <K+<Cl−<S2−

Question 3

5

10

20

25

Question 4

Both ΔH and ΔS are negative.

Both ΔH and ΔS are positive

ΔH is positive while ΔS is negative

ΔH is negative while ΔS is positive

Question 5

0.0075

0.015

0.02

0.005

Question 6

1.0 × 10−10

1.0 × 10+10

10

1

Question 7

The copper metal will dissolve and zinc metal will be deposited.

The copper metal will dissolve with evolution of hydrogen gas.

The copper metal will dissolve with evolution of oxygen gas.

No reaction will occur.

Question 8

Enthalpy of adsorption is greater than 100 kJ mol−1

Energy of activation is low.

Adsorption is monolayer.

Adsorption increases with increase in temperature.

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

10.376g/cm³

5.188g/cm³

7.289g/cm³

2.144g / cm³

Ca² + < K⁺ < A^r < S²− < Cl⁻

Ca²+ <K⁺<Ar <C l − <S²⁻

Ca²- <K⁺<Ar <C l + <S²⁻

Ca²+ <Ar <K⁺<Cl⁻<S²⁻

1.0 × 10⁻¹⁰

1.0 × 10⁺¹⁰

Enthalpy of adsorption is greater than 100 kJ mol⁻¹