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Which of the following is correct ?A. All alkali earth metal salts impart a characteristic colour to Bunsen flame.B. `CsOH` is most soluble hydroxide among `LiOh, KOH, RbOH` and `CsOH`.C. Amoung the alkali metals `Li` is most reactive under all the conditions.D. The reducing character of the alkali metal hydrides following order: `LiH gt NaH gt KH gt RbH gt CsH` |
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Answer» Correct Answer - B (A) Be & mg don’t give flame test. (C ) lonisation energy and melthing point of `Li` are higher. (D) Correct reducing character order is: `CsH gt RbH gt KH gt NaH gt LiH` |
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