Match the following: a Pure nitrogen i Chlorine b Haber process i i Sulphuric acid c Contact process i i i Ammonia d Deacon’s process i v Sodium azide or Barium azide Which of the following is the correct option?

a - i v ; b - i i i ; c - i i ; d - i

a - i ; b - i i ; c - i i i ; d - i v

a - i i ; b - i v ; c - i ; d - i i i

a - i i i ; b - i v ; c - i i ; d - i

MEDIUM

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Holme's signals are prepared from .

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Important Questions on The p-Block Elements

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

The reaction of zinc with dilute and concentrated nitric acid, respectively, produces:

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

With respect to group 15 elements, answer the following :

Write the chemical equation for the preparation of ${PH}_{3}$ .

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

The chemical which is NOT involved in Holme's signal is

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

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

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

How is phosphine prepared In laboratory? How does it react with

${CuSO}_{4}$

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

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

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

What happens when white phosphorus is heated with Conc.

NaOH

solution in an inert atmosphere of

{CO}_{2}

? Also give chemical equation for this.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

N_{2}

DOES NOT show property of catenation because,

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

The product obtained by the reaction of calcium phosphide with water is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

Write with balanced equation, what happens when white phosphorous is boiled with caustic soda solution.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

Match the following:

$(a)$	Pure nitrogen	$(i)$	Chlorine
$(b)$	Haber process	$(i i)$	Sulphuric acid
$(c)$	Contact process	$(i i i)$	Ammonia
$(d)$	Deacon’s process	$(i v)$	Sodium azide or Barium azide

Which of the following is the correct option?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

Complete the following reaction, and balance it.

${Ca}_{3} P_{2} (s) + HCl (aq) \overset{}{\to}$

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

Complete the following reaction :

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

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

The product formed in the reaction of

S O C l_{2}

with white phosphorous is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

By the action of concentrated

H_{2} {SO}_{4}

, phosphorus changes to:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

The molecule with smallest

N - N

bond distance and higest

NNO

bond angle is

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

Can

{PCl}_{5}

act as an oxidising as well as a reducing agent? Justify.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

Give the laboratory method of preparation of phosphine and also write the equation of the related reaction.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

How does phosphine react with ${HgCl}_{2}$ ?

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Phosphene: Preparation, Structure, Properties and Uses

Which of the following reactions DOES NOT produce

{PH}_{3}

Holme's signals are prepared from .

Important Questions on The p-Block Elements

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