Deep pink colour is given to flame by the salts of
- AStrontium
- BPotassium
- CZinc
- DBarium
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Give a brief explanation of the ionisation enthalpy of alkaline earth metals (Group-$2$) elements.
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View SolutionThe compound formed when gypsum is dissolved in aqueous ammonium sulphate solution is:
Which of the following hydroxides is insoluble in water?
Match the following:
Metal Uses $1. \text{Be}$ $c. \text{To prepare windows of X-rays}$ $2. \text{Ca}$ $d. \text{To remove air from vacuumized tubes}$ $3. \text{Mg}$ $a. \text{To prepare Grignard reagent}$
| Metal | Uses |
|---|---|
| $1. \text{Be}$ | $c. \text{To prepare windows of X-rays}$ |
| $2. \text{Ca}$ | $d. \text{To remove air from vacuumized tubes}$ |
| $3. \text{Mg}$ | $a. \text{To prepare Grignard reagent}$ |
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