1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Which one of the following is an ambidentate ligand?

A

Ethane-1,2-diamine

B

Ethylenediaminetetraacetate ion

C

Thiocyanate

D

Oxalate

2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of increasing metallic character of $\mathrm{Na}, \mathrm{Be}, \mathrm{P}, \mathrm{Mg}$ and Si is

A

$\mathrm{P}<\mathrm{Si}<\mathrm{Be}<\mathrm{Mg}<\mathrm{Na}$

B

$\mathrm{P}<\mathrm{Si}<\mathrm{Na}<\mathrm{Mg}<\mathrm{Be}$

C

$\mathrm{P}<\mathrm{Mg}<\mathrm{Be}<\mathrm{Si}<\mathrm{Na}$

D

$\mathrm{Be}<\mathrm{Si}<\mathrm{P}<\mathrm{Mg}<\mathrm{Na}$

3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

$$ \text { Match List I with List II: } $$

NEET 2026 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 3 EnglishChoose the correct answer from the options given below :

A

A-II, B-III, C-I, D-IV

B

A-II, B-III, C-IV, D-I

C

A-II, B-IV, C-III, D-I

D

A-I, B-III, C-IV, D-II

4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Although +3 oxidation state is most common in lanthanoids, cerium still shows +4 oxidation state because:

A

After losing one more electron, it acquires $4 f^{14}$ electronic configuration.

B

Its nearest inert gas is Radon.

C

Its atomic number is 61 .

D

After losing one more electron, it acquires $4 f^0$ electronic configuration.