Classification of Elements and Periodicity in Properties Test

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Classification of Elements and Periodicity in Properties Test - 67

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Weekly Quiz Competition

Question 1
1 / -0

Which one of the following is not a monoatomic element ?

A
Copper

B
Helium

C
Iodine

D
Barium

Solution

Iodine is not a monoatomic elements. It is diatomic element. Rest are all monoatomic elements.
Question 2
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Refer to change in the properties of elements on moving from left to right across a period of the Periodic Table. For each property, choose the correct answer.
The electron affinity of the elements in groups 1 to 7:

A
goes up and then down

B
decreases adn then increases

C
increases

D
decreases

Solution

Electron affinity increases upward far the groups because the electrons added to energy level becomes closer to the nucleus.
Question 3
1 / -0

Increasing order of electron gain enthalpy is:

A
$$N < O < Cl < Al$$

B
$$O < N < Al < Cl$$

C
$$N < Al < O < Cl$$

D
$$Al < N < O < Cl$$

Solution
Question 4
1 / -0

Electronegativity of chlorine is three. Electron affinity of chlorine is 3.6ev/ atom. The ionisation potential of chlorine is what ev/ atom?

A
2.4

B
6.2

C
13.2

D
16.8

Solution
Question 5
1 / -0

An element having electronic configuration $$1s^{2}, 2s^{2}, 2p^{6}, 3s^{2},3p^{6}, 4s^{1}$$ will form:

A
Acidic oxide

B
Basic oxide

C
Amphoteric oxide

D
Neutral oxide

Solution
Question 6
1 / -0

Match the items of Columns I and II and mark the correct option
Column-I Column-II
(a) $$H_2SO_4$$ (p) Highest electron gain enthalpy
(b) $$CCl_3NO_2$$ (q) Chalcogen
(c) $$Cl_2$$ (r) Tear gas
(d) Sulphur (s) Storage batteries

A
$$a\rightarrow$$ (s);$$b\rightarrow$$ (r);$$c\rightarrow$$ (p):$$d\rightarrow$$ (q):

B
$$a\rightarrow$$ (r);$$b\rightarrow$$ (s);$$c\rightarrow$$ (p):$$d\rightarrow$$ (q):

C
$$a\rightarrow$$ (s);$$b\rightarrow$$ (p);$$c\rightarrow$$ (q):$$d\rightarrow$$ (r):

D
$$a\rightarrow$$ (q);$$b\rightarrow$$ (p);$$c\rightarrow$$ (r):$$d\rightarrow$$ (s):

Solution
Question 7
1 / -0

Which of the following is the correct order for electron gain enthalpy?

A
$$S < O < Cl < F$$

B
$$O < S < F < Cl$$

C
$$Cl < F < S < O$$

D
$$F < Cl < O < S$$

Solution
Question 8
1 / -0

Which of the following species has the highest electron gain enthalpy?

A
$$F^-$$

B
$$S$$

C
$$O^-$$

D
$$O$$

Solution
Question 9
1 / -0

Consider the following conversions :
That according to given information the incorrect statement is :

A
$$\Delta H_3$$ is more negative than $$\Delta H_1$$, and $$\Delta H_2$$

B
$$\Delta H_1$$ is less negative than $$\Delta H_2$$

C
$$\Delta H_1$$,$$\Delta H_2$$ and $$\Delta H_3$$ are negative whereas $$\Delta H_4$$ is positive

D
$$\Delta H_1$$,and $$\Delta H_3$$ are negative whereas $$\Delta H_2$$ and $$\Delta H_4$$ is positive

Solution

Order of electron gain enthalpy: $$Cl > F > O$$
The first electron gain enthalpy for halogen is always negative.
Question 10
1 / -0

Second electron gain enthalpy :

A
is always negative

B
is always positive

C
can be positive or negative

D
is always zero

Solution

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Re-Attempt Weekly Quiz Competition

Column-I	Column-II
(a) $$H_2SO_4$$	(p) Highest electron gain enthalpy
(b) $$CCl_3NO_2$$	(q) Chalcogen
(c) $$Cl_2$$	(r) Tear gas
(d) Sulphur	(s) Storage batteries

Classification of Elements and Periodicity in Properties Test - 67

Result

Classification of Elements and Periodicity in Properties Test - 67

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Rank

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SHARING IS CARING

Question 1

Copper

Helium

Iodine

Barium

Solution

Question 2

goes up and then down

decreases adn then increases

increases

decreases

Solution

Question 3

$$N < O < Cl < Al$$

$$O < N < Al < Cl$$

$$N < Al < O < Cl$$

$$Al < N < O < Cl$$

Solution

Question 4

2.4

6.2

13.2

16.8

Solution

Question 5

Acidic oxide

Basic oxide

Amphoteric oxide

Neutral oxide

Solution

Question 6

$$a\rightarrow$$ (s);$$b\rightarrow$$ (r);$$c\rightarrow$$ (p):$$d\rightarrow$$ (q):

$$a\rightarrow$$ (r);$$b\rightarrow$$ (s);$$c\rightarrow$$ (p):$$d\rightarrow$$ (q):

$$a\rightarrow$$ (s);$$b\rightarrow$$ (p);$$c\rightarrow$$ (q):$$d\rightarrow$$ (r):

$$a\rightarrow$$ (q);$$b\rightarrow$$ (p);$$c\rightarrow$$ (r):$$d\rightarrow$$ (s):

Solution

Question 7

$$S < O < Cl < F$$

$$O < S < F < Cl$$

$$Cl < F < S < O$$

$$F < Cl < O < S$$

Solution

Question 8

$$F^-$$

$$S$$

$$O^-$$

$$O$$

Solution

Question 9

$$\Delta H_3$$ is more negative than $$\Delta H_1$$, and $$\Delta H_2$$

$$\Delta H_1$$ is less negative than $$\Delta H_2$$

$$\Delta H_1$$,$$\Delta H_2$$ and $$\Delta H_3$$ are negative whereas $$\Delta H_4$$ is positive

$$\Delta H_1$$,and $$\Delta H_3$$ are negative whereas $$\Delta H_2$$ and $$\Delta H_4$$ is positive

Solution

Question 10

is always negative

is always positive

can be positive or negative

is always zero

Solution

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