Question

Which of the following on thermal decomposition yields a basic as well as an acidic oxide?

Solution

Correct option is

CaCO3

 

                                (basic)     (acidic)

SIMILAR QUESTIONS

Q1

The label on a bottle of H2O2 solution reads as ’10 volume’. The concentration of H2O2 in percentage by volume is

Q2

Which of the following has the highest decomposition temperature?

Q3

Bleaching powder slowly loses its activity when it stands in air. This is due to

Q4

Chloride of an element gives natural solution in water. In the periodic table the element belongs to

Q5

Among the following compounds of cement which is present in the highest amount?

Q6

Sodium peroxide which is a yellow solid, when exposed to air becomes white due to the formation of

Q7

The alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which of the following orders?

Q8

 

Choose the correct statement :

The reason for use of polyphosphates as water softening agents is, that

Q9

Lithium can not be stored in kerosene oil because

Q10

Which one out of the NaOH and KOH, is a better absorber of CO2?