Inorganic

QUESTION BANK ON INORGANIC CHEMISTRY C HEMISTRY A. EXP EXPLA LAIN IN WHY: WHY:  p-BLOCK ELEMENTS ELEMENTS 1. Red phosph phosphorou orouss s !ess !ess re"#$% re"#$%ee $h"& 'h$ 'h$ee phosphor phosphorous. ous. (. NH) s " s$ro&*er +"se $h"& PH ). ). Su!ph Su!phur ur h"s " *re"$er *re"$er $e&de&#, $e&de&#, or #"$e&"$ #"$e&"$o& o& $h"& $h"& o,*e&. o,*e&. /. 0( s " s$ro&*er od&* "*e&$ $h"& C! (. 2. I& $h $hee s$r s$ru# u#$u $ure re o HN HNO O )3 $he N-O +o&d 4 1(1p56 s shor$er $h"& $he N- OH +o&d 4 1/7 p56. 8. A! A!!! $he $he P 9 C! +o +o&d &dss & & PC! PC!2 "re &o$ eu%"!e&$. ;. IC IC!! s 5o 5ore re re" re"#$ #$% %ee $h"& $h"& I (. <. Phosp Phosphorou horouss h"s " *re"$er *re"$er $e&de& $e&de&#, #, or #"$e&"$ #"$e&"$o& o& $h"& $h"& &$ro*e& &$ro*e&.. =. Bo&d dsso# dsso#"$o "$o& & e&er*, e&er*, o !uor&e !uor&e s !ess !ess $h"& $h"& $h"$ $h"$ o #h!or&e. #h!or&e. 17. No #he5#"! #he5#"! #o5pou&d #o5pou&d o o He s >&o'&. >&o'&. 11. The e!e#$ro& *"& e&$h"!p, e&$h"!p, o su!phur "$o5 h"s " *re"$er &e*"$%e %"!ue $h"& $h"& $h"$ o o,*e& "$o5. "$o5. 1(. N$ro N$ro*e& *e& does &o$ &o$ or5 pe&$" h"!des h"!des.. 1). I& "ueous so!u$o& so!u$o& o HI s " s$ro&*er "#d $h"& HC!. HC!. 1/. Xe0( h"s " !&e"r s$ru#$ure &o$ " +e&$ s$ru#$ure. 12. The e!e#$ro& *"& e&$h"!p, e&$h"!p, o !uor&e "$o5 h"s " !ess !ess &e*"$%e %"!ue $h"& $h"$ o #h!or&e "$o5. "$o5. 18. H0 h"s 5u#h h*her +o!&* +o!&* po&$ $h"& HC!. 1;. NH) s h*her +o!&* po&$ $h"& PH ). 1<. B 4? 6 s " s$ro&*er od&* od&* "*e&$ $h"& S+ 4 ? 6. 1=. Su!phur & %"pour s$"$e eh+$ p"r"5"*&e$# p"r"5"*&e$# +eh"%our. +eh"%our. (7. H)PO( "#$ "s " 5o&o+"s# 5 o&o+"s# "#d. (1. Ther5"! s$"+!$, s$"+!$, o '"$er '"$er s 5u#h h*her $h"& H (S. ((. Order o o "#d s$re&* s$re&*$h $h s PH)  H(S

HC!.

(). S08 s &o$ e"s!, h,dro!,sed $hou*h $her5od,&"5#"!!, $ shou!d +e. (/. N( h"s h*her +o&d dsso#"$o& e&er*, $h"& NO. (2. N( "&d CO +o$h h"s s"5e +o&d order +u$ CO s 5ore re"#$%e $h"& N (. (8.. Th (8 Thee "#d "#d s$r s$re& e&*$ *$h h o o "#d "#d & &#r #re" e"se sess & & $he $he or orde derr H0

HC!! HC

HBr  HB r  HI.

(;. PC!2 +eh"%es "s o&# spe#es & so!d s$"$e. (<. S08 s !ess re"#$%e $h"& S0 /. (=. O $he &o+!e *"ses o&!, Xe or5s >&o'& #he5#"! #o5pou&ds. )7. NO( d5erse e"s!,. )1. Bo&d "&*!e o NH) s h*her $h"& PH ). )(. NH) s *re"$er "&$, or pro$o& $h"& PH ). )). N0) s "& eo$her5# #o5pou&d +u$ NC! ) s &o$. )/. 0!uor&e does &o$ eh+$ pos$%e od"$o& s$"$e. )2. Phosphorous s 5u#h 5ore re"#$%e $h"& &$ro*e&. )8. The s$"+!$, o @2 od"$o& s$"$e de#re"ses do'& $he *roup & r 9 12 o $he perod# $"+!e. );. C!0) 5o!e#u!e h"s " T 9 sh"ped s$ru#$ure &o$ " $r*o&"! p!"&er o&e. )<. H(S s 5ore "#d# $h"& H (O. )=. The N 9 O +o&d & NO(- s shor$er $h"& N 9 O +o&d & NO )-. /7. Bo$h O( "&d 0( s$"+!se h*h od"$o& s$"$es +u$ $he "+!$, o o,*e& $o s$"+!e $he h*her od"$o& s$"$e e#eeds $h"$ o 0 ( /1. 0!uor&e does &o$ p!", $he ro!e o " #e&$r"! "$o5 & &$erh"!o*e& #o5pou&ds. /(. No+!e *"ses h"%e %er, !o' +o!&* po&$. /). S08 s >&e$#"!!, &er$. //. H)PO( s 5ore redu#&* $h"& H )PO). /2. S08 s >&o'& +u$ SH 8 s &o$ >&o'&. /8. A!! h"!o*e&s "re #o!oured. /;. O&!, >&o'& oo "#d o 0 s HO0. /<. I( s so!u+!e & '"$er & prese&#e o KI. /=. PC!2 s 5ore #o%"!e&$ $h"& PC! ). 27. H(SO/ s " s$ro&* "#d. 21. Bo&d dsso#"$o& e&$h"!p, o 0 ( s !ess $h"& C! (. 2(. HC!O/ s " s$ro&*er "#d $h"& HC!O. 2). B!e"#h&* o !o'ers +, #h!or&e s per5"&e&$ 'h!e $h"$ +, SO ( s $e5por"r,. 2/. Me$"! !uordes "re 5ore o&# $h"& 5e$"! #h!ordes. 22. Per#h!or# "#d s 5ore "#d# $h"& su!phurs "#d. 28. C!0) es$s +u$ 0C! ) does &o$.

2;. Add$o& o C!( $o KI so!u$o& *%es " +ro'& #o!our +u$ e#ess o #h!or&e $ur&s $ #o!our!ess. 2<. H0 s !ud 'h!e HC! s *"s. 2=. H0 #"&$ +e s$ored & *!"ss +o$$!e. 87. O08 s &o$ >&o'&. 81. 0 pro%des $he !"r*es$ &u5+er o &$er h"!o*e& #o5pou&ds. 8(. Xe0( s !&e"r &o$ +e&$. 8). NO +e#o5es +ro'& 'he& re!e"sed & "r. 8/. Su!phur ds"ppe"rs 'he& +o!ed '$h "ueous so!u$o& o sodu5 su!ph$e. 82. Su!phur %"pour s p"r"5"*&e$# & &"$ure. 88. I( +e#o5es so!u+!e & '"$er & prese&#e o KI. 8;. Whe& N"Br s $re"$ed '$h H (SO/ #o&#. Br ( s or5ed 3'h!e HC! s or5ed 'he& N"C! s $re"$ed '$h H(SO/ #o&#. 8<. O,*e& sho's #o%"!e&#e o $'o 'here"s su!phur sho's up$o s. 8=. H)PO) s " d+"s# "#d. ;7. H)PO( s 5ore redu#&* $h"& H )PO).

d- "&d - BLOCK ELEMENTS

1. The @( od"$o& s$"$e o M& s u$e s$"+!e 'h!e $he s"5e s &o$ $rue or 0e. (. Ce)@ #"& +e e"s!, oded $o Ce /@. 

). E  or M&)@D M&(@ #oup!e s 5ore @%e $h"& or 0e )@D 0e(@ or Cr )@D Cr (@ . /. Tr"&s$o& 5e$"!s eh+$ h*her e&$h"!pes o "$o5"$o&. 2. The Tr"&s$o& 5e$"!s or5 &$ers$$"! #o5pou&ds. 8. The Tr"&s$o& 5e$"!s *e&er"!!, or5 #o!oured #o5pou&ds. ;. W$h )d/ #o&*ur"$o&3 Cr (@ "#$s "s " redu#&* "*e&$ +u$ M& )@ "#$s "s "& od&* "*e&$. <. The "#$&ods eh+$ " !"r*er &u5+er o od"$o& s$"$es $h"& $he #orrespo&d&* !"&$h"&ods. =. The Tr"&s$o& 5e$"!s "&d $her #o5pou&ds "re ou&d $o +e *ood #"$"!,s$ & 5"&, pro#ess.

17. Co4II6 s s$"+!e & "ueous so!u$o& +u$ prese&#e o #o5p!e&* "*e&$s s e"s!, oded. 11. The !"r*es$ &u5+er o od"$o& s$"$es "re eh+$ed +, $he e!e5e5$s & $he 5dd!e o $he rs$ ro' o $he $r"&s$o& e!e5e&$s. 1(. The "$o5# r"d de#re"ses & se '$h &#re"s&* "$o5# &u5+er & $he !"&$h"&od seres. 1). e&er"!!, $here s "& &#re"se & de&s$, o e!e5e&$s ro5 T4  F ((6 $o Cu 4 F (=6 & $he rs$ seres o $r"&s$o& e!e5e&$s. 1/. The "$o5# r"d o $he 5e$"! o $he $hrd 4 2d 6 seres o $r"&s$o& e!e5e&$s "re %r$u"!!, $he s"5e "s $hose #orrespo&d&* 5e5+ers o se#o&d 4 /d 6 seres. 12. & s &o$ re*"rded "s $r"&s$o& 5e$"!. 18. A#$&od #o&$r"#$o& s 5ore $h"& !"&$h"&od #o&$r"#$o&. 1;. The *re"$es$ &u5+er o od"$o& s$"$es "re eh+$ed +, $he 5e5+er & $he 5dd!e o " $r"&s$o& seres. 1<. There o##urs 5u#h 5ore reue&$ 5e$"! 9 5e$"! +o&d&* & #o5pou&ds o he"%, $r"&s$o& e!e5e&$s 4 )rd seres6. 1=. The 5e5+er & $he "#$&od seres eh+$s " !"r*er &u5+er o od"$o& s$"$es $h"& $he #orrespo&d&* 5e5+ers & $he !"&$h"&od seres. (7. Cu@ o& s u&s$"+!e & "ueous so!u$o&. (1. G&!>e Cr )@3 M&(@3 0e)@ "&d su+seue&$ o$her 5e$"! o&s o $he )d seres o e!e5e&$s 3$he /d "&d 2d seres 5e$"!s *e&er"!!, do &o$ or5 s$"+!e #"$o&# spe#es. ((. The Tr"&s$o& 5e$"!s "&d $her #o5pou&ds *e&er"!!, eh+$ p"r"5"*&e$# +eh"%our. (). The #he5s$r, o "#$&ods s &o$ so s5oo$h "s $h"$ o !"&$h"&5ods. (/. The Tr"&s$o& 5e$"!s or5 !"r*e &u5+er o "!!o,s. (2. The Tr"&s$o& 5e$"!s eh+$ !"r*e &u5+er o od"$o& s$"$es. (8. d1 #o&*ur"$o& s %er, u&s$"+!e & %er, u&s$"+!e & o&. (;. r "&d H h"%e s5!"r se. (<. R"dus o 0e (@ s !ess $h"& $h"$ o M& (@. (=. K (P$C!8 s " 'e!! >&o'& #o5pou&d 'h!e #orrespo&d&* N #o5pou&d s &o$ >&o'&. )7. S#)@ o& s #o!our!ess "&d p"r"5"*&e$#. )1. M&(@ #o5pou&ds "re 5ore s$"+!e $h"& 0e (@ #o5pou&ds $o'"rds od"$o& $o $her @) s$"$e. )(. M&4 II 6 o& sho's 5"5u5 p"r"5"*&e$# #h"r"#$er.

)). 0e)@ s 5ore p"r"5"*&e$# $h"& 0e (@. )/. T4H(O68)@ s purp!e #o!oured 'h!e S#4H (O68)@ s #o!our!ess. )2. &3 H* "&d Cd "re %o!"$!e 5e$"!s. )8. L"4OH6 ) s 5ore +"s# $h"& Lu4OH6 ). );. The h*hes$ od"$o& s$"$e o " 5e$"! eh+$ed & $s ode oe !uorde o&!,. )<. The %"r"$o& o E 7 4M(@DM6 %"!ues or $he rs$ ro' $r"&s$o& e!e5e&$s s rre*u!"r. )=. A5o&* $he )d e!e5e&$s & h"s $he !o'es$ e&$h"!p, o "$o5"$o&. /7. A* "$o5 h"s #o5p!e$e!, !!ed d or+$"! & *rou&d s$"$e3,e$ $ s " $r"&s$o& 5e$"!.