Question

choose the most appropriate answer from( so2 , sio2 ,al2o3 ,co ,mgo , na2o) (a) a covalent oxide of metalloid (b) an oxide which when dissolved in water from acid (c) a basic oxide (d) an amphoteric oxide​

Answer 1

Answer:

SiO2 b) SO2 c) MgO, Na2O d) Al2O3

Explanation:

We analyze the given compounds as

follows:

SO2 SO2 is a covalent oxide. When SO2 is dissolved in water it forms an acidic solution of Sulphuric acid.

SiO2 this is a covalent Oxide and is an Oxide of the metalloid Si.

A1203 This is an ionic oxide which is amphoteric in nature. That is it has both acidic and basic properties.

Explanation:

MgO - This is a basic Oxide.

Na20 This is a basic oxide

From this we can now answer the question as follows:

1) A covalent Oxide of a metalloid - SiO2

2) An Oxide which when dissolved in water

forms an acid - SO2

3) A basic Oxide - MgO, Na2O

4) An amphoteric oxide A1203