JEE Main
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- JEE Main
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- Chemistry
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- p Block Elements (Group 13 & 14)
JEE Main · Chemistry · p Block Elements (Group 13 & 14)
Aluminium reacts with NaOH and forms compound ' X '. If the...
Aluminium reacts with and forms compound ' '. If the coordination number of aluminium in ' ' is 6 , the correct formula of is
Options
- A\left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_4(\mathrm{OH})_2\right]^{+}
- B\left[\mathrm{Al} \left(\mathrm{H}}_{2} \mathrm{O}\right)_3(\mathrm{OH})_3\right]
- C\left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_2(\mathrm{OH})_4\right]^{-}
- D\left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right](\mathrm{OH})_3
Correct answer
C. \left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_2(\mathrm{OH})_4\right]^{-}
Step-by-step solution
Sodium metaaluminate, thus formed, is soluble in water and changes into the complex \left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_2(\mathrm{OH})_4\right]^{-}\mathrm{Al}