Elements of Group 1 and 2 — Important Questions
Maharashtra Board · Class 11 · Chemistry
45 important questions from Elements of Group 1 and 2 for Maharashtra Board Class 11 Chemistry, with answers. Includes multiple choice and multiple.
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Important Questions from Elements of Group 1 and 2
Which properties increase down Group 1 elements?
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Atomic radius, Ionic radius, Density
Down Group 1, atomic radius, ionic radius, and density increase due to addition of new shells. However, ionization enthalpy and electronegativity decrease down the group.
Which Group 2 elements are correct?
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Beryllium (Be), Magnesium (Mg), Calcium (Ca)
Group 2 (alkaline earth metals) includes Be, Mg, Ca, Sr, Ba, and Ra. Al belongs to Group 13 and Na belongs to Group 1.
What is the formula of washing soda?
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Na₂CO₃·10H₂O
Washing soda is sodium carbonate decahydrate with the formula Na₂CO₃·10H₂O. It contains 10 molecules of water of crystallization.
Which element shows diagonal relationship with magnesium?
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Lithium
Lithium shows diagonal relationship with magnesium. Both form similar compounds and have comparable properties due to similar charge density.
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