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Nitrogen and phosphorous belong to the same group in the periodic table and yet the later forms $H_{3} {PO}_{3}, H_{3} {PO}_{4}, {({HPO}_{3})}_{n}, H_{4} P_{2} O_{7}$ and the former forms only ${HNO}_{3}, {HNO}_{2}$ and ${HNO}_{4}$ i.e., former forms less number of oxyacid's. This is because

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Important Questions on The p-Block Elements

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

The best reducing agent among the following is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Iodine reacts with concentrated

H N O_{3}

to yield

Y

along with other products. The oxidation state of iodine in

Y

, is:

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Which of the following statements are correct?

I)

P_{4}

molecule is very reactive because of angular strain.

II)

The basicity of

H_{3} {PO}_{3}

3

III)

In gas phase, all

P - Cl bonds

{PCl}_{5}

have same bond length.

IV)

In solid state,

{PCl}_{5}

exists as an ionic solid, in which anion

{[{PCl}_{6}]}^{-}

has octahedral and cation

{[{PCl}_{4}]}^{+}

has tetrahedral shape.

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Of the following compounds, the most acidic is:

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Good reducing nature of

H_{3} P O_{2}

is attributed to the presence of:

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

A group

15

element, which is a metal and forms a hydride with strongest reducing power among group

15

hydrides. The element is :

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

The correct order of the bond angles of the given compounds is

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Which hydride amongst the following has the least boiling point ?

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Consider the following compounds:

1 . {(N H_{4})}_{2} C r_{2} O_{7}

2 . N H_{4} N O_{2}

3 . N H_{4} V O_{3}

4 . N H_{4} N O_{3}

Which compound(s) yield(s) nitrogen gas upon heating?

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Which of following elements does not react with hot concentrated sulphuric acid?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Acid having

+ 4

oxidation state of phosphorus is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Which element among the following does form

Pπ - Pπ

multiple bonds?

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Anomalous behavior of nitrogen is due to

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Which of the following fluoro-compounds is most likely to behave as a Lewis base?

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

The compound(s) that does(do) not exist is (are)

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

The oxidation states of

' P'

H_{4} P_{2} O_{7}, H_{4} P_{2} O_{5}

and

H_{4} P_{2} O_{6},

respectively, are :

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

{PCl}_{3}

is stored in a well stoppered bottle since

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

In which oxidation state, group 15 elements act as Lewis base?

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Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

Consider the following statements concerning

N_{2} H_{4} :

(i) It is an exothermic compound.

(ii) It burns in air with the evolution of heat.

(iii) It has kinetic stability.

(iv) It reduces

F e^{3 +}

F e^{2 +}

in acidic medium.

Which of the following combinations is correct?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Chemical Properties of Group 15 Elements

The product obtained as a result of a reaction of nitrogen with

C a C_{2}

is:

Nitrogen and phosphorous belong to the same group in the periodic table and yet the later forms H3PO3, H3PO4, HPO3n, H4P2O7 and the former forms only HNO3, HNO2 and HNO4 i.e., former forms less number of oxyacid's. This is because

Important Questions on The p-Block Elements

Learn and Prepare for any exam you want !

Nitrogen and phosphorous belong to the same group in the periodic table and yet the later forms $H_{3} {PO}_{3}, H_{3} {PO}_{4}, {({HPO}_{3})}_{n}, H_{4} P_{2} O_{7}$ and the former forms only ${HNO}_{3}, {HNO}_{2}$ and ${HNO}_{4}$ i.e., former forms less number of oxyacid's. This is because