Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

IB Chemistry DP Spectroscopic Identification Quiz

10 Questions

1 Views

IB Chemistry DP Spectroscopic Identification Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does the Index of Hydrogen Deficiency (IHD) provide information about?

The mass of a molecule in comparison to its saturated counterpart

The number of oxygen and sulfur atoms in a molecule

The number of hydrogen molecules needed to convert a molecule to the corresponding saturated, non-cyclic molecule (correct)

The number of carbon atoms in a molecule

How is the IHD calculated for a compound containing CxHy?

(2x+2-y)/2 (correct)

(2x-y)/2

(x+y)/2

(x+2y)/2

Which atoms are ignored when using the IHD formula?

Hydrogen and halogen atoms

Carbon and hydrogen atoms

Oxygen and sulfur atoms (correct)

Nitrogen and carbon atoms

What is the purpose of counting halogens as hydrogen in the IHD formula?

To account for their similar properties to hydrogen atoms Signup and view all the answers

How is the degree of unsaturation related to the IHD?

The degree of unsaturation is another term for IHD Signup and view all the answers

What is the Index of Hydrogen Deficiency for ethyne, C$_2$H$_2$?

2 Signup and view all the answers

What is the Index of Hydrogen Deficiency for methylbenzene, C$_6$H$_5$CH$_3$?

4 Signup and view all the answers

Which peak in a mass spectrum gives information about the molecular mass of a compound?

Molecular ion (M+) peak Signup and view all the answers

How can the structure of an unknown compound with the same molecular mass as another be further determined?

By analyzing its fragmentation patterns in the mass spectrum Signup and view all the answers

What does the [M+1] peak in a mass spectrum depend on?

Number of carbon atoms present in the molecule Signup and view all the answers