Advertisements
Advertisements
Question
Which of the following elements does not show allotropy?
Options
Nitrogen
Bismuth
Antimony
Arsenic
Solution
Nitrogen
Explanation:
Nitrogen does not show allotropy due to its weak N – N single bond.
Therefore, ability of nitrogen to form polymeric structure or more than one structure become less. Hence, nitrogen does not show allotropy.
APPEARS IN
RELATED QUESTIONS
Out of white phosphorus and red phosphorus, which one is more reactive and why?
Which allotrope of phosphorus is more reactive and why?
Give reasons for the following:
Red phosphorus is less reactive than white phosphorus.
Which allotrope of sulphur is thermally stable at room temperature ?
Which allotrope of phosphorous is most stable?
What is the spontaneous ignition temperature of white phosphorous?
Which of the following is correct for P4 molecule of white phosphorus?
(i) It has 6 lone pairs of electrons.
(ii) It has six P–P single bonds.
(iii) It has three P–P single bonds.
(iv) It has four lone pairs of electrons.
Which of the following statements are correct?
(i) All the three N – O bond lengths in \[\ce{HNO3}\] are equal.
(ii) All P – Cl bond lengths in \[\ce{PCl5}\] molecule in gaseous state are equal.
(iii) \[\ce{P4}\] molecule in white phosphorus have angular strain therefore white phosphorus is very reactive.
(iv) \[\ce{PCl}\] is ionic in solid state in which cation is tetrahedral and anion is octahedral.
Phosphorus has three allotropic forms — (i) white phosphorus (ii) red phosphorus and (iii) black phosphorus. Write the difference between white and red phosphorus on the basis of their structure and reactivity.
Which one of the following is formed (mainly) when red phosphorus is heated in a sealed tube at 803 K?
