Chemical Properties of Group 15 Elements

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Chemical Properties of Group 15 Elements: Overview

This topic covers concepts, such as Anomalous Properties of Nitrogen, Properties of Hydrides of Group 15 Elements, Oxidation States of Group 15 Elements, Chemical Properties of Group 15 Elements, Reactivity of Group 15 Elements with Oxygen, etc.

Important Questions on Chemical Properties of Group 15 Elements

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Match the following:

(i) The electron gain enthalpy of sulphur atom has a greater negative value than that of oxygen atom.    (a) bond dissociation

(ii) Nitrogen does not form pentahalides.                                                                                                 (b) small size

(iii) In aqueous solution HI is a stronger acid than HCl.                                                                          (c) absence of d-orbitals

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Given below are two statements:

Statement I: SbCl5 is more covalent than SbCl3

Statement II: The higher oxides of halogens also tend to be more stable than the lower ones.

In the light of the above statements, choose the most appropriate answer from the options given below.

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Statement-1 : SbCl5 is more covalent than SbCl3.

Statement-2 : Higher oxidation state halides of group 15 are more stable.

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Can you say what type of bond exists between atoms of nitrogen molecule?

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The compound that does not exist among the following is

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Which of the following is not hydrolysed?

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Which of the following is the increasing order of enthalpy of vaporization?

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The element which forms oxides in all oxidation states +I to +V is

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Which of the following does not form a pentachloride?

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Which of the following oxide of nitrogen is most acidic in nature ?

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Which of the following trihalides of nitrogen is inert?

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The most acidic oxide among the following, is

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A tetra-atomic molecule (A) on reaction with Nitrogen (I)Oxide produces two substances (B) and (C). (B) acts as a dehydrating agent while substance (C) is a diatomic gas which shows almost inert behavior. The substances (A),(B) and (C) respectively are_______

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The gases liberated when zinc reacts with dilute and conc. HNO3 respectively are

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In an organic compound phosphorus is estimated as ___

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Which reaction (s) among the following produce Dinitrogen?

(i) NH4Cl(aq) +NaNO2(aq) 

(ii) NH2CONH2 + 2H2O 

(iii) Ba(N3)2 

(iv) NH4Cl + Ca(OH)2 

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The acidic character of the group- 15 elements in the increasing order is _____

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The correct order for decreasing basic strength of the molecules PH3,AsH3,SbH3, and BiH3 is:

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Ammonia produced is used in making nitro-based explosives including

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Nitrogen does not form NF5 because