In the listed lanthanoids, the element that displays a +2 oxidation state along with the
characteristic +3 oxidation state of lanthanoids is:

(a) Ce

(b) Eu

(c) Yb

(d) Ho

Choose the correct option

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

Subtopic:  Lanthanoid & Actinoids Contraction |
 68%
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

Which of the following ions show a higher spin-only magnetic moment value?

a. Ti3+
b. Mn2+
c. Fe2+
d. Co3+

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

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

 Which of the following actinoids show oxidation states upto +7?

(a) Am

(b) Pu

(c) U

(d) Np

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (b, d)

Subtopic:  f-Block Elements- Properties & Uses |
 61%
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

The electronic configuration of gadolinium (atomic number of 64) is:

1. [Xe]4f35d56s2

2. [Xe]4f75d26s1

3. [Xe]4f75d16s2

4. [Xe]4f85d66s2

Subtopic:  d-Block Elements- Properties & Uses |
 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

The largest oxidation number exhibited by an element depends on its electronic configuration. With which of the following electronic configurations will the element exhibit the largest oxidation number?

1. 3d14s2

2. 3d34s2

3. 3d54s1

4. 3d54s2

Subtopic:  d-Block Elements- Properties & Uses |
 73%
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

Electronic configuration of a transition element X in +3 oxidation state is [Ar]3d5. What is its atomic number?

1.  25

2.  26

3.  27

4.  24

Subtopic:  d-Block Elements- Properties & Uses |
 85%
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

The electronic configuration of Cu(II) is 3d9 whereas that of Cu(I) is 3d10, the correct statement about the aqueous solution of  Cu(II) and Cu(I) among the following is:

1. Cu(II) is more stable
2. Cu(II) is less stable
3. Cu(I) and Cu(II) are equally stable
4. Stability of Cu(I) and Cu(II) depends on the nature of copper salts

Subtopic:  d-Block Elements- Properties & Uses |
 67%
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

Metallic radii of some transition elements are given below. Which of these elements will have highest density?

Element

            Fe

         Co

           Ni

           Cu

Metallic radii/pm

           126    

        125

         125

            128

1.  Fe 

2.  Ni

3.  Co

4.  Cu

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

The coloured compound among the following in the solid state is:
1. \( \mathrm{Ag}_{2} \mathrm{SO}_{4} \)
2. \(\mathrm {C u F}_{2} \)
3. \(\mathrm {Zn F}_{2} \)
4. \(\mathrm{Cu}_{2} \mathrm{Cl}_{2} \)

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

advertisementadvertisement

On addition to a small amount of KMnO4 to concentrated H2SO4, a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following.

1. Mn2O7

2MnO2

3MnSO4

4Mn2O3


 

Subtopic:  Chemistry of Mn and Cr Compounds |
 62%
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