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NCERT TAMIL-GROUP 2 S - BLOCK ELEMENTS-QUESTION
- The element used in pyrotechnics is
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- The general electronic configuration of alkaline earth metals is .
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- The ionic radius on moving down the group 2.
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- In flame, calcium gives colour.
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- Beryllium resembles more with an element in 13th group .
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- Magnesium comes from the name of the mineral .
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- is present chlorophyll.
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- Magnesium is prepared by the electrolysis of fused .
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- With air, Magnesium forms and .
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- The formula of epsom salt is .
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- Epsom salt is used as .
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- Match the following {:("1. Magnesite",CaSO(4).2H(2) O),("2. Dolamite...
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- An element occupies group number 2 and period number 3. This element r...
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- Why the oxides of Group 2 metals have high melting points?
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- Why there is increase in the ionisation potential for forming M^(3+) i...
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- Why there is increase in the ionisation potential for forming M^(3+) i...
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- List the carbonates and hydroxide of alkaline earth metals in order of...
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- Why do beryllium halides fume in air?
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- Why group 2 elements are harder than alkali metals?
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- Beryllium halides are covalent whereas magnesium halides are ionic. Wh...
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