Choose The Correct Statement : The Reason For Use Of Polyphosphates As Water Softening Agents Is, That

Which of the following has the highest decomposition temperature?

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

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

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

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

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?

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

Lithium can not be stored in kerosene oil because

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

Which product is formed in the following reaction