nitrogen

Question 1

nitrogen’s os

Answer 1

+1, +2, +4

Question 2

nitrogen’s single bond….

Answer 2

is weaker than phosphorus single bond

because of high interelectronic replusions of non bonding electrons

Question 3

the stability of hydrides decreases from

Answer 3

nh3 to bih3

Question 4

ammonia is………. and bismuth is ………..

Answer 4

mild reducing agent and strong reducing agent

Question 5

pcl3 prep

Answer 5

• dry cholrine w white p
  P4+cl2=PCl3
• thionyl chloride w white p
  p4 + SOCl2 = PCl3 + SO2 +S2Cl2

Question 6

PCl3 is

Answer 6

colourless oily liq

has pyramidal shape w p is sp3

Question 7

PCl3 hydrolysis in moisture

Answer 7

PCl + 3H2O→H3PO +3HCl

Question 8

nitrogen prep using ammonium chloride

Answer 8

NH4Cl + NaNO3 = N2+ H2o + nacl

Question 9

nitrogen prep using ammonium dichromate

Answer 9

(NH4)2Cr2O7 + heat = N2+ 4H2O + Cr2O3

Question 10

thermal decomposition of na or ba azide

Answer 10

Ba(N3)2 = Ba + 3N2

Question 11

ammonium salts which
decompose when treated with caustic soda or calcium hydroxide

Answer 11

2NH4Cl + Ca(OH)2 → 2NH3 + 2H2O + CaCl2

(NH4)2 SO4 + 2NaOH → 2NH3 + 2H2O + Na2SO4