Why calcium chloride and potassium fluoride are added in the ele

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 Multiple Choice QuestionsShort Answer Type

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41.

Why calcium chloride and potassium fluoride are added in the electrolysis of fused sodium chloride? 


In order to lower the melting point of sodium chloride.
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42.

Why Be forms covalent compounds?

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43.

Why does a piece of burning magnesium ribbon continue to burn in sulphur dioxide?

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44.

Why do beryllium halides fume in moist air?

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45.

Why alkaline earth metals do not occur in free state in nature?

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46.

Which element of second group has maximum first ionisation enthalpy?

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47.

What is Mg+ ion unstable?

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48.

What is oxone?

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49.

Write the correct sequence of alkaline earth metals in the group. 

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50.

Name the raidoactive element of group 2.

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