S-Block Elements


The word Alkali means
A. Base B. Basic salt
C. Ashes D. Spirit
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C
The oxides of beryllium BeO is
A. Acidic B. Basic
C. Amphoteric D. Neutral
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C
Li is different from its family members due to
A. small size B. high charge density
C. less electropositivity D. all of the above
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D
Carbonates of lithium are not stable like that of sodium due to
A. Low electronegativity B. Low electropositivity
C. Low charge density D. Not known yet
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B
Which one of the following is not an alkali metal?
A. Francium B. Caesium
C. Rubidium D. Radium
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D

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