JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
Given below are two statements :
Statement I: Aluminium upon reaction with NaOH forms \([Al(OH)_6]^{3-}\) ion.
Statement II: The geometry of \(ICl_4^-\), \(ClO_3^-\) and \(IBr_2^-\) is square planar, pyramidal and linear respectively.
In the light of the above statements, choose the correct answer from the options given below :
- A Both Statement I and Statement II are true
- B Both Statement I and Statement II are false
- C Statement I is true but Statement II is false
- D Statement I is false but Statement II is true
Answer & Solution
Correct Answer
(D) Statement I is false but Statement II is true
Step-by-step Solution
Detailed explanation
Statement I: Aluminium reacts with aqueous sodium hydroxide to form sodium tetrahydroxoaluminate(III) and liberates hydrogen gas. The reaction is given by: \(2Al + 2NaOH + 6H_2O \rightarrow 2Na^+[Al(OH)_4]^- + 3H_2\) The complex ion formed is \([Al(OH)_4]^-\), not…
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