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

What is the average oxidation state of sulphur in… | StemPy Lab

Quizzes
What is the average oxidation state of sulphur in dithionous acid, H₂S₂O₄?

ChemistryHardHigh School (11–12)The p-Block Elements

Created by StemPy Lab

What is the average oxidation state of sulphur in dithionous acid, $\text{H}_{2}\text{S}_{2}\text{O}_{4}$ ?

← All Quizzes

← Carbon is heated with an excess of concentrated sulphuric acid, C + 2H₂SO₄ → CO₂ + 2SO₂ + 2H₂O. How many moles of gas form from 0.14 mol of carbon? Count the steam as a liquid.An engineer suggests piping the gas from the converter of an acid plant straight into a tank of water. The plant manager refuses. What is the main reason? →

More onThe p-Block Elements

Discussion (0)

Log in to join the discussion.

Loading…

More questions on this topic

A colourless solution of a sodium salt is acidified with dilute hydrochloric acid. A pale yellow…Advanced
A sample of 0.441 g of potassium dichromate, 294 g/mol, is dissolved in acid with an excess of…Advanced
In which of these reactions do two different elements change their oxidation states, so that no…Hard
A volume of 22.0 mL of 0.180 mol/L sodium nitrite is oxidised to nitrate by acidified potassium…Hard
Which of these species has the same shape as the sulphate ion and the same number of valence…Hard

All questions on this topic →

Problems on this topic

A colourless gas A has a choking smell. It turns acidified potassium dichromate from orange to…Advanced
The strength of bleaching powder is given as the percentage of available chlorine, which is the…Advanced
Chlorine gas, 0.600 mol, is passed into an excess of sodium hydroxide solution…Hard
A student passes sulphur dioxide through 25.0 mL of 0.0200 mol/L potassium permanganate solution…Hard

All problems on this topic →