Explore topic-wise MCQs in Engineering Chemistry Questions and Answers.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

The relative energies of molecular orbitals in increasing order have been found to be as follows.

A. (σ1s) < (σ*1s) < (σ2s) < (σ*2s) < [(π2py)(π2pz)] < (σ 2px) < [(π*2py)(π*2pz)] < (σ*2px)
B. For O2 to Ne2
C. For H2 to N2
D. For H2 to Ne2
E. For N2 to Ne2
Answer» C. For H2 to N2
Discussion
2.

Bond Order of O2, F2, N2 respectively are __________

A. +1, +2, +3
B. +2, +3, +1
C. +2, +1, +3
D. +3, +2, +1
Answer» D. +3, +2, +1
Discussion
3.

The filling of molecular orbital takes place according to __________

A. The Aufbau Principle
B. Pauli Exclusion Principle
C. Hund’s rule of maximum multiplicity
D. All of the mentioned
Answer» E.
Discussion