English

Correct the Following Statement: Formula of Iron (Lll) Oxide is Feo. - Chemistry

Advertisements
Advertisements

Question

Correct the following statement:

Formula of iron (lll) oxide is FeO.

One Line Answer
Advertisements

Solution

Formula of iron (lll) oxide is Fe2O3.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: The Language of Chemistry - Exercise 1 (C) [Page 19]

APPEARS IN

Selina Concise Chemistry [English] Class 9 ICSE
Chapter 1 The Language of Chemistry
Exercise 1 (C) | Q 11.5 | Page 19

RELATED QUESTIONS

What do the symbols, H2, S and O4 mean in the formula H2SO4 ?


Identify the following substance:

A brown gas D with the irritating smell.


Name the element in the compound and give the formula of the following compound:

Carbonic acid


Name the element in the compound and give the formula of the following compound:

Phosphoric acid


Name the element in the compound and give the formula of the following compound:

Green vitriol


Write the formula of the following compound:

Sodium bicarbonate


Write the formula of the following compound:

Sodium iodide


Write the formula of the following compound:

Sodium nitrite


Write the formula of the following compound:

Magnesium carbonate


Write the formula of the following compound:

Zinc chloride


Write the formula of the following compound:

Copper [II] sulphide


Write the formula of the following compound:

Iron [II] oxide


Write the formula of the following compound:

Iron [III] oxide


Write the formula of the following compound:

Iron [II] sulphate


Write the formula of the following compound:

Silver [I] chloride


State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

NaCO3


Find the valency of the element which is underlined in the following formula.

  1. NaCl
  2. CO2
  3. Al (PO4)
  4. Ba (NO3)2
  5. CaCl2

Which of the following represents a correct chemical formula? Name it.


There are ______ hydrogen atoms in water molecule.


Play a game for writing formula.

Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.

For example:

The formula for sodium sulphate:

2 sodium ions can be fixed on one sulphate ion.

Hence, the formula will be Na2SO4.

Do it yourself:

Now, write the formula of sodium phosphate.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×