Complete and balance the following reactions: Ag + HNO 3 ( dilute ) → _____+_____+_____.

When nitric acid reacts with silver, silver nitrate is formed along with water and oxides of nitrogen. Silver metal reacts with cold dilute nitric acid and produce silver nitrate ( AgNO 3 ) salt, nitric oxide ( NO ) gas and water as products. This reaction is a redox reaction (oxidation - reduction reaction) too. The balanced chemical reaction is given below, 3 Ag + 4 HNO 3 ( dilute ) → 3 AgNO 3 + NO + 2 H 2 O .

EASY

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Nitrogen is known to form a variety of oxides and oxyacids. $NO$ and $N_{2} O$ are unstable, while ${NO}_{2}$ is a stable oxide. ${NO}_{2}$ is a brown acidic gas at room temperature and on cooling below $20 ° C$ gives $N_{2} O_{4} . {NO}_{2} / N_{2} O_{4}$ dissolves in water to give nitric acid. $N_{2} O_{4}$ reacts with $NO$ to form $N_{2} O_{3}$ . When some metals react with dil. ${HNO}_{3}$ at room temperature, oxides of nitrogen in lower oxidation states are formed. The correct statement is

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Important Questions on The p-Block Elements

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

When copper is heated with conc.

H N O_{3}

it produces:

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

An inorganic Compound

' X'

on treatment with concentrated

H_{2} {SO}_{4}

produces brown fumes and gives dark brown ring with

{FeSO}_{4}

in presence of concentrated

H_{2} {SO}_{4}

. Also Compound

' X'

gives precipitate

' Y'

, when its solution in dilute

HCl

is treated with

H_{2} S

gas. The precipitate

' Y'

on treatment with concentrated

{HNO}_{3}

followed by excess of

{NH}_{4} OH

further gives deep blue coloured solution, Compound

' X'

is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Write the name of the gas released when

Cu

is added to dilute

{HNO}_{3}

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

State one observation for the following:

Lead nitrate is heated strongly in a test tube.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Name the gas that is produced in the following case.
Sulphur is oxidized by concentrated nitric acid.

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Complete and balance the following reactions:

Ag + \underset{(dilute)}{{HNO}_{3}} \to

_____+_____+_____.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Write the name of the gas released when

Cu

is added to conc.

{HNO}_{3}

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Explain ostwald process of manufacture of nitric acid under the following points:

(i) Theory and equations

(ii) Labelled diagram

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Complete the following reaction :

$C + conc . {HNO}_{3} \to$

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Which of the following chemicals DOES NOT liberate hydrogen gas on reaction with Aluminum metal?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Complete the following reaction:

$Cu + {HNO}_{3} (dilute) \overset{}{\to} ?$

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

State why for the preparation of nitric acid, the complete apparatus is made up of glass.

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Complete and balance the following chemical equations:

Cu + \underset{dil .}{{HNO}_{3}} \to

_____+_____+_____.

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

State one observation for the following:

Concentrated nitric acid is reacted with sulphur

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Complete the following equation:

$S + conc . {HNO}_{3} \to$

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Write the manufacture of

{HNO}_{3}

by Ostwald’s process with stepwise equations.

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

Identify the substance underlined:

The dilute acid which is an oxidising agent.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

How many gm of the oxidising agent gets reduced in the reaction of $65.4 gm$ of $Zn$ with concentrated nitric acid?

[Atomic mass $[Zn = 65.4, N = 14, H = 1, O = 16 gm {mol}^{- 1}]$ ]

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

What is the type of salt formed when the reactants are heated at a suitable temperature for the preparation of nitric acid?

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

The nitrogen containing compound produced in the reaction of

H N O_{3}

with

P_{4} O_{10}

Important Questions on The p-Block Elements

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