Advertisements
Advertisements
प्रश्न
Which of the following elements does not form hydride by direct heating with dihydrogen?
पर्याय
Be
Mg
Sr
Ba
उत्तर
Be
Explanation:
Due to high ionization enthalpy and small size, Be does not react with hydrogen by direct heating.
APPEARS IN
संबंधित प्रश्न
What are the common chemical features of alkali metals?
Why are potassium and cesium, rather than lithium used in photoelectric cells?
Which of the alkali metal is having least melting point?
Which one of the following alkali metals gives hydrated salts?
The alkali metals are low melting. Which of the following alkali metal is expected to melt if the room temperature rises to 30°C?
The order of decreasing ionisation enthalpy in alkali metals is ______.
Metals form basic hydroxides. Which of the following metal hydroxide is the least basic?
By adding gypsum to cement
Which of the following compounds are readily soluble in water?
(i) BeSO4
(ii) MgSO4
(iii) BaSO4
(iv) SrSO4
Write Lewis strucure of \[\ce{O^{-}2}\] ion and find out oxidation state of each oxygen atom? What is the average oxidation state of oxygen in this ion?