1
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.

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

$$ \text { In the following reaction sequence, } \mathrm{X} \text { and } \mathrm{Z} \text { respectively are : } $$

NEET 2026 Chemistry - Alcohol, Phenols and Ethers Question 1 English
A

NEET 2026 Chemistry - Alcohol, Phenols and Ethers Question 1 English Option 1

B

$$ \mathrm{X}=\mathrm{POCl}_3 ; \mathrm{Z}=\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2-\mathrm{Br} $$

C

NEET 2026 Chemistry - Alcohol, Phenols and Ethers Question 1 English Option 3

D

$$ \mathrm{X}=\mathrm{H}_3 \mathrm{PO}_3 ; \mathrm{Z}=\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2-\mathrm{Br} $$

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

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

List I
(Complex/ion)
List II
(Shape/geometry)
A. $$
\left[\mathrm{Pt}\left(\mathrm{Cl}_2\right)\left(\mathrm{NH}_3\right)_2\right]
$$
I. Octahedral
B. $$
\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3
$$
II. Trigonal bipyramidal
C. $$
\left[\mathrm{NiCl}_4\right]^{2-}
$$
III. Square planar
D. $$
\left[\mathrm{Fe}(\mathrm{CO})_5\right]
$$
IV. Tetrahedral
Choose the correct answer from the options given below :
A

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

B

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

C

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

D

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

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

The functional group that can be identified through phthalein dye test is :

A

Aldehyde

B

Phenolic

C

Carboxylic acid

D

Alcohol