What happens when. Aluminium is treated with dilute NaOH. - Vidyadip

Question

What happens when.
Aluminium is treated with dilute NaOH.

✓

Answer

Al reacts with dilute NaOH to form sodium tetrahydroxoaluminate(III). Hydrogen gas is liberated in the process.
$2\text{Al}_{\text{(s)}}+2\text{NaOH}_{\text{(eq)}}+6\text{H}_2\text{O}_{\text{(l)}}\rightarrow2\text{Na}^+\big[\text{Al(OH)}_4\big]^-_\text{(eq)}+3\text{H}_{2(\text{g})}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from The p-Block Elements→The p-Block Elements — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Calculate number of ions in 3 mole $Al _2\left( SO _4\right)_3$

Consider the elements: Cs, Ne, I and FIdentify the element that exhibits both positive and negative oxidation states.

An iron rod is immersed in solution containing 1.0M $NiSO_4$ and 1.0M $ZnSO_4.$ Predict giving reasons which of the following reactions is likely to proceed?

Fe reduces $Zn^{2+}$ ions,
Iron reduces $Ni^{2+}$ ions.

Given,
$\text{E}^\circ_{\frac{\text{Zn}^{2+}}{\text{Zn}}}=-0.76\text{V, E}^{\circ}_{\frac{\text{Fe}^{2+}}{\text{Fe}}}=-0.44\text{V and }$
$\text{E}^\circ_{\frac{\text{Ni}^{2+}}{\text{Ni}}}=-0.25\text{V}$

A LPG cylinder contains 15kg of butane at 27°C and 10atm pressure is leaking. After one day, its pressure decreased to 8atm. Calculate the quantity of gas leaked.

A sparingly soluble salt having general formula $\text{A}^{\text{p+}}_{\text{x}}\text{B}^{\text{q-}}_{\text{y}}$ and molar solubility S is in equilibrium with its saturated solution. Derive a relationship between the solubility and solubility product for such salt.

Define hybridisation. Explain the structure of $\mathrm{C}_2 \mathrm{H}_2$ with orbital diagram.

i. $\mathrm{Ca}_2$
ii. $\mathrm{CaC}_2$
iii. $\mathrm{H}_2 \mathrm{CO}_3$
iv. $HCN$
v. $CO$

Name the two greenhouse gases.
What is global warming?

Element A reacts with aqueous NaOH solution to form B and H . Aqueous solution of B is hetated to $323-33 \mathrm{~K}$ and on passing $\mathrm{CO}_2$ into it, $\mathrm{Na}_2 \mathrm{CO}_3$ and C were formed. When C is heated to $1200^{\circ} \mathrm{C}, \mathrm{Al}_2 \mathrm{O}_3$ is formed. identify A,B, and C and also write the reaction involved.

$\Delta\text{H}$ and $\Delta\text{S}$ for a reaction are found to be $-10000 \mathrm{~J} \mathrm{~mol}^{-1}$ and $-33.3 \mathrm{JK}^{-1}$. Under what conditions reaction will proceed in reverse direction.