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Preparations and Uses of Caustic Soda

The balanced ...

Question

The balanced equation for Al powder when warmed with hot & conc. caustic soda solution.

A l + 2 N a O H + 2 H_{2} O \to N a A l O_{2} + 3 H_{2}

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2 A l + N a O H + 2 H_{2} O \to 2 N a A l O_{2} + 2 H_{2}

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A l + 2 N a O H + 3 H_{2} O \to N a A l O_{3} + 3 H_{2}

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2 A l + 2 N a O H + 2 H_{2} O \to 2 N a A l O_{2} + 3 H_{2}

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Solution

The correct option is D $2 A l + 2 N a O H + 2 H_{2} O \to 2 N a A l O_{2} + 3 H_{2}$
Reaction:
$2 A l + 2 N a O H + 2 H_{2} O \to 2 N a A l O_{2} + 3 H_{2}$

Suggest Corrections

Similar questions

H_{2}

20^{0} C

1

0.27 g

(a t . m a s s o f A l = 27 u)

2 A l + 2 N a O H + 2 H_{2} O \to 2 N a A l O_{2} + 3 H_{2}

What is the mechanism of following reactions in the preparation of hydrogen:

Zn+2NaOH=Na₂ZnO₂ +H₂

2Al+2NaOH+2H₂O=2NaAlO₂ +3H₂

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N a O H

100 %

I

2 N a + 2 H_{2} O ⟶ 2 N a O H + H_{2}

2 H_{2} + O_{2} ⟶ 2 H_{2} O

I I

2 N a + \frac{1}{2} O_{2} ⟶ N a_{2} O

N a_{2} O + H_{2} O ⟶ 2 N a O H

A l + N a O H \to N a_{3} A l O_{3} + H_{2}

2 A l + 2 O H^{-} + 6 H_{2} O \to 2 [A l {(O H)}_{4}]^{-} + 3 H_{2}

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

2 N a O H + H_{2} S O_{4} ⟶ N a_{2} S O_{4} + 2 H_{2} O

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