Download App

Atoms and Molecules — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Write the molecular formulae for the following compounds.
Iron (III) sulphide.
✓

Answer

Oxidation state of sulphide is −2 and that of iron is given as +3. Therefore, to balance the charges, molecular formula will be Fe2S3.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Do as directed; [Che-1 M]" from Atoms and Molecules→Atoms and Molecules — all question types→Science STD 9 question papers→CBSE Board STD 9 question papers→CBSE Board question paper generator→

Similar questions

Name the scientist who gave:
Law of constant proportions.
→
What is the process called in which pigments of natural colours can be separated?
→
Which subatomic particle whose relative charge is:
  1. Chadwick?
  2. Thomson?
  3. Goldstein?
→
State one instance where water undergoes a physical change and one in which it undergoes a chemical change.
→
What is the reason for the different atomic masses of the isotopes of an element?
→
What is wrong with the following symbols? Give the correct symbol in case:
Sulphur (S)
→
Write down the names of Q compounds represented by the following formulae:

Al2(SO4)3

→
What is the relationship between an atom containing 11 protons, 11 electrons ad 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neurtrons?
→
What do you understand by the statement "the solubility of copper sulphate in water at 20°C is 20.7g"?
→
Write the electronic configuration of the element with atomic number 17. Indicate the valency of the element.
→