The IUPAC name and symbol for the element with atomic number 120 are respectively-

1. Unnilbium; Ubn

2. Unbinilium; Ubn

3. Ununbium; Uub

4. Unbinilium; Uub

Subtopic:  Modern Periodic Table & Periodicity |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Statement A: The elements Z = 117 belongs to chalcogen family and the electronic configuration would be [Rn] 5f146d107s27p4
Statement B: The element with Z = 120 belongs to Group 2 (alkaline earth metals), and the electronic configuration would be [Uuo]8s2


The correct option is-

1. Statement A is correct, B is wrong.
2. Statement A is wrong, B is correct
3. Both A and B are wrong.
4. Both A and B are correct




 

Subtopic:  Modern Periodic Table & Periodicity |
 64%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Assertion (A): In the 5th period of the Periodic Table 18 elements are present.
Reason (R): When n = 5, l = 0, 1, 2, 3. The total number of orbitals available are 9. The maximum number of electrons that can be accommodated is 18.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.


 

Subtopic:  Modern Periodic Table & Periodicity |
 55%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The correct increasing order of metallic character among' the following elements is:

Si, Be, Mg, Na, P

1. P < Si < Be < Mg = Na.

2. P < Si > Be < Mg < Na

3. P > Si > Be >Mg > Na

4. P < Si < Be < Mg < Na.

Subtopic:  Modern Periodic Table & Periodicity |
 71%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The first ionization enthalpy (i ) values of the third-period elements, Na, Mg, and Si are respectively 496, 737, and 786 kJ mol–1. The first i H value for Al will be-

1. Less than 496 kJ mol
–1
2. Less than 737 kJ mol–1
3. In between 
737 kJ mol–1 and 786 kJ mol-1
4. Cannot predict

 

Subtopic:  Ionization Energy (IE) |
 58%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Correct statement among the following regarding P, S, Cl, F is -
 

1. F has most negative electron gain enthalpy, and S has least negative electron gain enthalpy.
2. Cl has most negative electron gain enthalpy, and S has least negative electron gain enthalpy.
3. Cl has most negative electron gain enthalpy, and P has least negative electron gain enthalpy.
4. F has most negative electron gain enthalpy, and P has least negative electron gain enthalpy.


 

Subtopic:  Electron Affinity (EA) |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The formula of a compound that is formed by the aluminium and sulphur is-

1.  AlS2
2.  Al2S3
3.  Al3S2
4.  Al3S4

Subtopic:  Nature of Compound |
 89%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The oxidation state and covalency of Al in [AlCl(H2O)5]2+ are respectively:

1. +3 and 3
2. +6 and 2 
3. +3 and 6
4. +2 and 2 

Subtopic:  Nature of Compound |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Consider the following reaction.
Na
2O + H2 A
Cl
2O7 + H2 B
The product A and B are respectively-
1. A is NaOH; and B is HOCl
2. A is NaH; and B is HOCl
3. A is NaH; and B is
HClO2 
4. A is NaOH; and B is HClO4

Subtopic:  Nature of Compound |
 74%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh