Organic Chemistry
Some Basic Concepts of Organic Chemistry
MCQ (Single Correct Answer)MCQ (Multiple Correct Answer)
Alcohol, Phenols and Ethers
MCQ (Single Correct Answer)
Aldehydes, Ketones and Carboxylic Acids
MCQ (Single Correct Answer)MCQ (Multiple Correct Answer)
Organic Compounds Containing Nitrogen
MCQ (Single Correct Answer)
Chemistry in Everyday Life
MCQ (Single Correct Answer)
1
NEET 2025
MCQ (Single Correct Answer)
+4
-1

Given below are two statements :

Statement I: Like nitrogen that can form ammonia, arsenic can form arsine.

Statement II: Antimony cannot form antimony pentoxide.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Statement I is correct but Statement II is incorrect
B
Statement I is incorrect but Statement II is correct
C
Both Statement I and Statement II are correct
D
Both Statement I and Statement II are incorrect
2
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1

Identify the incorrect statement from the following :

A
The acidic strength of $$\mathrm{HX}(\mathrm{X}=\mathrm{F}, \mathrm{Cl}, \mathrm{Br}$$ and $$\mathrm{I})$$ follows the order: $$\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}$$.
B
Fluorine exhibits $$-$$1 oxidation state whereas other halogens exhibit $$+1,+3,+5$$ and $$+7$$ oxidation states also.
C
The enthalpy of dissociation of $$\mathrm{F}_2$$ is smaller than that of $$\mathrm{Cl}_2$$.
D
Fluorine is stronger oxidising agent than chlorine.
3
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1

Match List I with List II:

List - I
Solid salt treated with dil. H$$_2$$SO$$_4$$
List - II
Anion detected
(A) effervescence of colourless gas (I) NO$$_2^-$$
(B) gas with smell of rotten egg (II) CO$$_3^{2-}$$
(C) gas with pungent smell (III) S$$^{2-}$$
(D) brown fumes (IV) SO$$_3^{2-}$$

Choose the correct answer from the options given below:

A
A-II, B-III, C-IV, D-I
B
A-IV, B-III, C-II, D-I
C
A-I, B-II, C-III, D-IV
D
A-II, B-III, C-I, D-IV
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1

Among Group 16 elements, which one does NOT show -2 oxidation state?

A
O
B
$$\mathrm{Se}$$
C
$$\mathrm{Te}$$
D
Po
NEET Subjects