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प्रश्न
Which of the following elements does not form hydride by direct heating with dihydrogen?
पर्याय
Be
Mg
Sr
Ba
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उत्तर
Be
Explanation:
Due to high ionization enthalpy and small size, Be does not react with hydrogen by direct heating.
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संबंधित प्रश्न
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(i) Beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal.
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(ii) On concentrating the solution, blue colour changed to bronze colour.
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| List-I | List-II |
| (Metal) | (Emitted light wavelength (nm)) |
| (a) Li | (I) 780.0 |
| (b) Na | (II) 455.5 |
| (c) Rb | (III) 670.8 |
| (d) Cs | (IV) 589.2 |
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