Help Contact For teachers and institutes

Mock Tests Classes

StemPy Lab

Learn. Solve. Code the solutions. Test yourself.

Live examsFree mock exams, timed and rankedEveryone starts together, and your score and rank come the moment it ends.See the exams →

Learn

Physics
Chemistry
Mathematics
Biology
Python Programming
Statistics & Data Science
Classes
Groups

Practice

Problems
Quizzes
Mock Tests
Prepare for an Exam
Question Sets
Exams
Certificates
Python Labs
AI Practice Generator
Student-Created Tests

Community

Discussions
Resources
Notes
Blog

Account

Log in

© 2026 senLearn. All rights reserved.Help About Contact Privacy Policy Terms of Use Refund Policy

A 2-ketoheptose has a straight chain of seven carbon… | StemPy Lab

Quizzes
A 2-ketoheptose has a straight chain of seven carbon atoms with the C=O group on C-2. How many stereoisomers does it have?

ChemistryHardHigh School (11–12)Organic Compounds with Functional Groups › Biomolecules

Created by StemPy Lab

A 2-ketoheptose has a straight chain of seven carbon atoms with the C=O group on C-2. How many stereoisomers does it have?

← All Quizzes

← Assertion (A): Glucose does not give Schiff's test. Reason (R): In solution, glucose exists mainly in cyclic hemiacetal forms, with very little free aldehyde.One of the four natural amino acids named below has no stereocentre in its structure. Which one is it? →

More onOrganic Compounds with Functional Groups › Biomolecules

Discussion (0)

Log in to join the discussion.

Loading…

More questions on this topic

A gene has the sequence GAG in its coding strand, and a mutation changes it to GTG. The change in…Hard
A circular DNA of 2000 base pairs is stretched out into a straight double helix. How long is it…Hard
Assertion (A): An excess of vitamin C is rarely harmful. Reason (R): Vitamin C is water-soluble…Medium
Analysis of a double-stranded DNA shows that its guanine makes up 21% of all the bases. What is…Medium
Which base pair has three hydrogen bonds?Medium

All questions on this topic →

Problems on this topic

A gene of a bacterium has 1200 base pairs on its coding strand, from the start codon ATG to the…Hard
Thyroxine has the formula C₁₅H₁₁I₄NO₄ and a molar mass of 776.87 g/mol…Medium
A messenger RNA is 5′-AUGGCUUGGAAAUAG-3′…Medium
The chromosome of the bacterium Escherichia coli has about 4.6 × 10⁶ base pairs…Medium

All problems on this topic →