Explore topic-wise MCQs in IIT JEE.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your IIT JEE knowledge and support exam preparation. Choose a topic below to get started.

1.

Mg+O2=MgO Balance the above Chemical equation?

A. 2Mg + O2 ----> 2MgO
B. 2Mg + O ----> 2MgO
C. 2Mg + O ----> MgO2
D. 2Mg + O2 ----> MgO2
Answer» B. 2Mg + O ----> 2MgO
Discussion
2.

What is the IUPAC name for the following compound? H3C-C C-H

A. Acetylene
B. Methyl acetylene
C. Butanol
D. Decanoic Acid
Answer» C. Butanol
Discussion
3.

The oxidation number of Cr in K2Cr2O7 is

A. +6
B. -5
C. +3
D. -4
Answer» B. -5
Discussion
4.

which of the following are chemical changes?

A. Cooking of Food
B. Digestion of Food
C. Freezing of water
D. Water is heated up
Answer» B. Digestion of Food
Discussion