‘Lapis-Lazuli’ is a blue-coloured precious stone. It is a mineral of the class:
- ASodium-alumino silicate
- BZinc cobaltate
- CBasic copper carbonate
- DPrussian blue
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Which of the following ions does not exist in an aqueous solution?
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Match the List-$I$ with List-$II$.
List-$I$ (Family) List-$II$ (Symbol of Element) $A$. Pnictogen (group $15$) $I$. $Ts$ $B$. Chalcogen $II$. $Og$ $C$. Halogen $III$. $Lv$ $D$. Noble gas $IV$. $Mc$
Choose the correct answer from the options given below:
| List-$I$ (Family) | List-$II$ (Symbol of Element) |
| $A$. Pnictogen (group $15$) | $I$. $Ts$ |
| $B$. Chalcogen | $II$. $Og$ |
| $C$. Halogen | $III$. $Lv$ |
| $D$. Noble gas | $IV$. $Mc$ |
Choose the correct answer from the options given below:
Write a note on $p$-block elements of the periodic table.
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