Colemanite is
- A$Ca[B_3O_4(OH)_2] \cdot 2H_2O$
- B$Ca_2B_6O_{11} \cdot 5H_2O$
- C$Ca(OH)_2$
- D$Na_2B_4O_7 \cdot 2H_2O$
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Similar Questions
Observe the following reactions (not balanced):
$BF_3 + LiAlH_4 \xrightarrow{(C_2H_5)_2O} X + LiF + AlF_3$
$X + NaH \longrightarrow Y$
The incorrect statement about $Y$ is:
$BF_3 + LiAlH_4 \xrightarrow{(C_2H_5)_2O} X + LiF + AlF_3$
$X + NaH \longrightarrow Y$
The incorrect statement about $Y$ is:
DifficultTS EAMCET 2024
View SolutionGroup $13$ elements show $+1$ and $+3$ oxidation states. The relative stability of the $+3$ oxidation state is given as:
Medium
View SolutionWhich of the following processes will not yield anhydrous $AlCl_3$?
Easy
View SolutionMatch the List-$I$ with List-$II$.
List-$I$ (Element) List-$II$ (Application) $A$. $Cs$ $I$. High temperature thermometer $B$. $Ga$ $II$. Water repellent sprays $C$. $B$ $III$. Photoelectric cells $D$. $Si$ $IV$. Bullet proof vest
Choose the most appropriate answer from the options given below:
| List-$I$ (Element) | List-$II$ (Application) |
|---|---|
| $A$. $Cs$ | $I$. High temperature thermometer |
| $B$. $Ga$ | $II$. Water repellent sprays |
| $C$. $B$ | $III$. Photoelectric cells |
| $D$. $Si$ | $IV$. Bullet proof vest |
Choose the most appropriate answer from the options given below:
Which of the statements about anhydrous aluminium chloride is correct?
MediumIIT 1981
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