Multiple choice question

In any group of the periodic table on going downwards what changes occur in
the following properties–
(a) Electro (–)vity (b) Melting point (c) Boiling Point
(d) Valency (e) Electron affinity
1 1 vad vad okys okys okys iz'u
iz'u
fjDr fjDr fjDr LFkkuks LFkkuks dh dh iwfrZA
iwfrZA
bdkbZ&4
bdkbZ&4
¼jklk;fud ¼jklk;fud vkca/ku vkca/ku ,oa ,oa vk.kfod vk.kfod lajpuk½
lajpuk½
(Atomic Structure and Chemical Bonding)
fjDr LFkkuks dh iwfrZA Fill in the blanks.
1 -------------- izdkj ds rRoksa esa lg&la;kstd ;kSfxd cukus dk xq.k ik;k tkrk gSA
We find the property of forming co–ordinate compounds in .......... type of
elements.
2 vk;fud ;kSfxdksa dk fuekZ.k ---------- izdkj ds rRoksa }kjk fd;k tkrk gSA
The conic compounds are formed by ........ type of elements.
3 fo|qr la;ksth ;kSfxdks ds e/; gksus okyh vfHkfØ;k,sa lg&latksth ;kSfxdksa ds
e/; gksus okyh vfHkfØ;vksa ls ---------- osx okyh gksrh gSaA
The velocity of the reactions in electrovalent compounds are of ......... velocity
than the reaction among the co–ordinate compounds.
4 NaCl esa ------------ la;kstdrk ik;h tkrh gSA
Valency found in NaCl is ...............
5 CH 4 esa -------------------- ladj.k ik;k tkrk gSA
.................. hybridisation is found in CH 4
6 LCAO dk iw.kZ uke gS -------------------
Full name for LCAO is .................
7 NH 3 dk DoFkukad PH 3 ds DoFkukad ls --------------- gksrk gSA
The boiling point of NH 3 is ................. then boiling point of PH 3
20