Conc. HN{O₃}

English

Gujarati

Hindi

p-Block Elements - I

easy

Conc. $HN{O_3}$

Reacts with aluminium vigrously

Reacts with aluminium to form aluminium nitrate

Does not react with aluminium

Reacts with platinum

Solution

Aluminum metal is not attacked by nitric acid of any concentration because of the thin and unreactive protective layer of aluminum oxide formed on the metallic surface due to the reaction of aluminium metal with oxygen of air.

Standard 11

Chemistry

Explain the following :

$(1)$ Gallium has higher ionisation enthalpy than aluminum.

$(2)$ Boron does not exist as $B^{3+}$ ion.

hard

Boric acid is polymeric due to

easy

Purification of aluminium done by electrolytic refining is known as

easy

(AIPMT-1999)

Complete the following chemical equations :

$Z + 3LiAl{H_4} \to X + 3LiF + 3Al{F_3}$

$X + 6{H_2}O \to Y + 6{H_2}$

$3X + 3{O_2}\xrightarrow{\Delta }{B_2}{O_3} + 3{H_2}O$

medium

Write reactions to justify amphoteric nature of aluminium.

easy

Conc. $HN{O_3}$

Solution

Similar Questions

Explain the following : $(1)$ Gallium has higher ionisation enthalpy than aluminum. $(2)$ Boron does not exist as $B^{3+}$ ion.

Boric acid is polymeric due to

Purification of aluminium done by electrolytic refining is known as

Complete the following chemical equations : $Z + 3LiAl{H_4} \to X + 3LiF + 3Al{F_3}$ $X + 6{H_2}O \to Y + 6{H_2}$ $3X + 3{O_2}\xrightarrow{\Delta }{B_2}{O_3} + 3{H_2}O$

Write reactions to justify amphoteric nature of aluminium.

Start a Free Trial Now

Explain the following :

$(1)$ Gallium has higher ionisation enthalpy than aluminum.

$(2)$ Boron does not exist as $B^{3+}$ ion.

Complete the following chemical equations :

$Z + 3LiAl{H_4} \to X + 3LiF + 3Al{F_3}$

$X + 6{H_2}O \to Y + 6{H_2}$

$3X + 3{O_2}\xrightarrow{\Delta }{B_2}{O_3} + 3{H_2}O$