Borax has the molecular formula
- A$Na_2[B_4O_3(OH)_4] \cdot 6H_2O$
- B$Na_2[B_4O_5(OH)_4] \cdot 6H_2O$
- C$Na_2[B_4O_5(OH)_4] \cdot 8H_2O$
- D$Na_2[B_4O_6(OH)_2] \cdot 8H_2O$
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The correct statements from the following are:
$(A)$ The decreasing order of atomic radii of group $13$ elements is $Tl > In > Ga > Al > B$.
$(B)$ Down the group $13$ electronegativity decreases from top to bottom.
$(C)$ $Al$ dissolves in dil. $HCl$ and liberates $H_2$,but conc. $HNO_3$ renders $Al$ passive by forming a protective oxide layer on the surface.
$(D)$ All elements of group $13$ exhibit a highly stable $+1$ oxidation state.
$(E)$ Hybridisation of $Al$ in $[Al(H_2O)_6]^{3+}$ ion is $sp^3d^2$.
Choose the correct answer from the options given below:
$(A)$ The decreasing order of atomic radii of group $13$ elements is $Tl > In > Ga > Al > B$.
$(B)$ Down the group $13$ electronegativity decreases from top to bottom.
$(C)$ $Al$ dissolves in dil. $HCl$ and liberates $H_2$,but conc. $HNO_3$ renders $Al$ passive by forming a protective oxide layer on the surface.
$(D)$ All elements of group $13$ exhibit a highly stable $+1$ oxidation state.
$(E)$ Hybridisation of $Al$ in $[Al(H_2O)_6]^{3+}$ ion is $sp^3d^2$.
Choose the correct answer from the options given below:
Draw the structures of $BCl_3.NH_3$ and $AlCl_3$ (dimer).
Medium
View SolutionWhich of the following on hydrolysis produces diborane $(B_2H_6)$?
Medium
View SolutionIn the following reaction,assign the correct category for the underlined atom in the product of complete hydrolysis at $R.T.$:
$\underline{I}Cl_3 + H_2O \longrightarrow HIO_2 + HCl$
$\underline{I}Cl_3 + H_2O \longrightarrow HIO_2 + HCl$
Difficult
View SolutionWhich of the following shows dimerisation?
Medium
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