Consider the following reactions-A Al -NaOH- Na3 AlO3-H2 B 2Al-2OH-6H2O- 2-Al OH 4-3H2C Al-Conc-HNO3- Al NO3 3-NH4NO3-H2OThe correct reactions are-

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Aluminium Chloride

Consider the ...

Question

Consider the following reactions:
(A) $A l + N a O H \to N a_{3} A l O_{3} + H_{2}$
(B) $2 A l + 2 O H^{-} + 6 H_{2} O \to 2 [A l {(O H)}_{4}]^{-} + 3 H_{2}$
(C) $A l + C o n c . H N O_{3} \to A l {(N O_{3})}_{3} + N H_{4} N O_{3} + H_{2} O$
The correct reactions are:

A and B

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A and C

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A, B and C

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Solution

The correct option is A A and B
The third reaction is wrong because it will take place if the nitric acid was dilute and not with concentrated nitric acid. When treated with concentrated nitric acid, aluminium forms aluminium oxide.
$2 A l + 6 H N O_{3} conc. \to A l_{2} O_{3} + 6 N O_{2} + 3 H_{2} O$

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Consider the following reactions:(A) Al+NaOH→Na3AlO3+H2 (B) 2Al+2OH−+6H2O→2[Al(OH)4]−+3H2(C) Al+Conc.HNO3→Al(NO3)3+NH4NO3+H2OThe correct reactions are:

The correct option is A A and BThe third reaction is wrong because it will take place if the nitric acid was dilute and not with concentrated nitric acid. When treated with concentrated nitric acid, aluminium forms aluminium oxide.2Al+6HNO3conc.→Al2O3+6NO2+3H2O

Consider the following reactions:
(A) $A l + N a O H \to N a_{3} A l O_{3} + H_{2}$
(B) $2 A l + 2 O H^{-} + 6 H_{2} O \to 2 [A l {(O H)}_{4}]^{-} + 3 H_{2}$
(C) $A l + C o n c . H N O_{3} \to A l {(N O_{3})}_{3} + N H_{4} N O_{3} + H_{2} O$
The correct reactions are: