Question:medium

Write the chemical formulae of the following.
(a)Magnesium chloride
(b)Calcium oxide
(c)Copper nitrate
(d)Aluminium chloride
(e)Calcium carbonate

Updated On: Jan 19, 2026
Show Solution

Solution and Explanation

Chemical Formulae 

(a) Magnesium chloride:

The chemical formula of magnesium chloride is MgCl₂.

(b) Calcium oxide:

The chemical formula of calcium oxide is CaO.

(c) Copper nitrate:

The chemical formula of copper nitrate is Cu(NO₃)₂.

(d) Aluminium chloride:

The chemical formula of aluminium chloride is AlCl₃.

(e) Calcium carbonate:

The chemical formula of calcium carbonate is CaCO₃.

Was this answer helpful?
0

Top Questions on Chemical Formula

Questions Asked in CBSE Class IX exam

(Street Plan) : A city has two main roads which cross each other at the centre of the city. These two roads are along the North-South direction and East-West direction.

All the other streets of the city run parallel to these roads and are 200 m apart. There are 5 streets in each direction. Using 1cm = 200 m, draw a model of the city on your notebook. Represent the roads/streets by single lines. There are many cross- streets in your model. A particular cross-street is made by two streets, one running in the North - South direction and another in the East - West direction. Each cross street is referred to in the following manner : If the 2nd street running in the North - South direction and 5th in the East - West direction meet at some crossing, then we will call this cross-street (2, 5). Using this convention, find: 

(i) how many cross - streets can be referred to as (4, 3). 

(ii) how many cross - streets can be referred to as (3, 4).

View Solution