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
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
(I)   H2O2 + O3 $$ \to $$ H2O + 2O2
(II)   H2O2 + Ag2O $$ \to $$ 2Ag + H2O + O2
Role of Hydrogen peroxide in the above reactions is respectvely
A
oxidizing in (I) and reducing in (II)
B
reducing in (I) and oxidizing (II)
C
reducing in (I) and (II)
D
oxidizing in (I) and (II)
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
In acidic medium, H2O2 changes Cr2O72- to CrO5 which has two

($$-$$O$$-$$O$$-$$) bonds. Oxidation state of Cr in CrO5 is
A
+5
B
+3
C
+6
D
$$-$$10
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from
A
zero to +1 and zero to $$-$$5
B
zero to $$-$$1 and zero to +5
C
zero to $$-$$1 and zero to +3
D
zero to +1 and zero to $$-$$3
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number?
A
S
B
H
C
Cl
D
C
NEET Subjects