+91-8527521718
Signup | Login
Select Chapter Topics:
filter
d-Block Elements- Properties & Uses
f-Block Elements- Properties & Uses
Lanthanoid & Actinoids Contraction
Chemistry of Mn and Cr Compounds
  • 1(current)
  • 2
  • 3
Q. No.
Assertion(A): Ni++ has two unpaired electrons. 
Reason(R): Electrons are removed from 3d but not from 4s.

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 and R is false.
4. A and R both are false.

 
Subtopic:  d-Block Elements- Properties & Uses |
 77%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Given below are two statements: 

Assertion (A): Cr2+ acts as a reducing agent and Mn3+ acts as an oxidising agent when both have d4 configuration.
Reason (R): The maximum oxidation state Cr show is +5 and Mn shows is +7.

 

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:  d-Block Elements- Properties & Uses |
 57%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Assertion (A): The highest oxidation state of osmium is +8 .
Reason (R): Osmium is a 5d-block element.
 
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. Both (A) and (R) are false.

Subtopic:  d-Block Elements- Properties & Uses |
 64%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
advertisementadvertisement

Given below are two statements: 

Assertion (A): Cu cannot liberate hydrogen from acids.
Reason (R): Because it has positive electrode potential.

 

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 not True but (R) is True
4. Both (A) and (R) are False.

Subtopic:  d-Block Elements- Properties & Uses |
 88%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Assertion (A): Actinoids form relatively less stable complexes as compared to lanthanoids.
Reason (R): Actinoids can utilise their 5f orbitals along with 6d orbitals in bonding but lanthanoids do not use their 4f orbital for bonding.

 

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 not True but (R) is True.
4. Both (A) and (R) are False.
Subtopic:  Lanthanoid & Actinoids Contraction |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Given below are two statements: 

Assertion (A): Separation of Zr and Hf is difficult.
Reason (R): Because Zr and Hf lie in the same group of the periodic table.

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 not true but (R) is true
4. Both (A) and (R) are false.

Subtopic:  d-Block Elements- Properties & Uses |
 65%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
advertisementadvertisement

Assertion (A): \(Cu^{2+}\) iodide is not known.
Reason (R): \(Cu^{2+}\) oxidises  \(I^-\) to iodine.
 
1. Both (A) and (R) are True, and (R) is the correct explanation of the (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is not True but (R) is True.
4. Both (A) and (R) are False.
Subtopic:  d-Block Elements- Properties & Uses |
 72%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Statement I: Actinoid contraction is greater from element to element than lanthanoid contraction. 
Statement II:  5f orbitals have a poorer shielding effect than 4f orbitals.
   
1. Statement I is True and Statement II is False.
2. Statement I is False and Statement II is True.
3. Both Statement I and Statement II are False.
4. Both Statement I and Statement II are True.
Subtopic:  Lanthanoid & Actinoids Contraction |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Statement I: Cr2+ is a stronger reducing agent than Fe2+ .
Statement II: Fe2+ is a stronger reducing agent than Cr2+ .
 
1. Both Statements I and Statement II are true.
2. Statement I is true and Statement II is false.
3. Both Statements I and Statement II are false.
4. Statement I is false, Statement II is true.
Subtopic:  d-Block Elements- Properties & Uses |
 65%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
advertisementadvertisement
Statement 1: Highest oxidation state of a metal is exhibited in its oxide or fluoride only.
Statement 2: Both oxide and fluoride ions are able to oxidise metals.
 
1. Statement 1 is true, Statement 2 is false.
2. Statement 1 is false, Statement 2 is true.
3. Both Statements 1 and Statement 2 are true.
4. Both Statements 1 and Statement 2 are false.
Subtopic:  d-Block Elements- Properties & Uses |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Select Chapter Topics:
filter
d-Block Elements- Properties & Uses
f-Block Elements- Properties & Uses
Lanthanoid & Actinoids Contraction
Chemistry of Mn and Cr Compounds
  • 1(current)
  • 2
  • 3
Q. No.

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions

© 2024 GoodEd Technologies Pvt. Ltd.