Class 9 Courses

Class 9 Chemistry App's Tests

Class 9 Chemistry e-Book's MCQs - Complete

Ions and Free Radicals MCQ App Download (Free) & e-Book - 82

MCQ:

An oxide ion has -2 charge because

  1. oxygen looses two electrons
  2. oxygen gains two electrons
  3. oxygen becomes neutral
  4. oxygen gains 3 electrons

Class 9 Chemistry App & e-Book Tests PDF Download

Ions and Free Radicals Textbook App: Free Download iOS & Android

The App: Ions and Free Radicals MCQ App to study Ions and Free Radicals Textbook, 9th Grade Chemistry MCQ App, and A level Chemistry MCQ App. The "Ions and Free Radicals MCQ" App to free download Android & iOS Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!

Ions and Free Radicals App (Android & iOS)

Ions and Free Radicals App (Android & iOS)

9th Grade Chemistry App (Android & iOS)

9th Grade Chemistry App (iOS & Android)

A level Chemistry App (Android & iOS)

A level Chemistry App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (iOS & Android)