When element of grp.14 of periodic table combines wid element of grp.17 then which type of compound is formed?

Question

WHICH TYPE OF COMPOUND IS FORMED AND WHAT TYPE OF BOND IS PRESENT IN IT?

Answer 1

Group 14 (IVA) elements have 4 valence electrons and form 4 bond with other elements to complete their octet.

Group 17 (VIIA) elements have 7 valence electrons and need only 1 more to fill their octet. Hence, they usually form one bond.

So Group 14 and 17 would be expected to form compounds of the formula XY4. The electronegativity difference between the Group 14 elements and most of the Group 17 elements favors covalent bonding, sharing of electron pairs.

Answer 2

Grp 14 => C , Si , Ge , Sn , Pb

Grp 17 => F , Cl, Br , I , At

We get a salt ( example SnBr2 ) => polar covalent bond

Answer 3

Not sure how sophisticated an answer whoever asked you the question is looking for, but the only correct answer is "it depends", because you're offering a huge range of possibilities.

Let's assume that for "type of compound" you're looking principally for answers like "ionic" and "covalent".

Let's assume that for "type of bond" you're looking for answers like "covalent" "polar covalent" and "ionic".  You may have even been told to work with electronegativity benchmarks to make that call -- EN difference of 1.7 is often cited as the break point between "polar covalent" and "ionic".  (I prefer to recognize that all chemical bonding lies on a sliding continuum rather than limit myself to restrictive categories, but fine.)

Which compound do you want to form?  Something like CCl4 or CBr4 are a covalent molecular compound with (weakly) polar covalent bonds -- the EN difference is only 0.61 and 0.41 respectively: one common formula gives only 4% ionic character to a C-Br bond, almost pure covalent.  Things like SnF2 or SnF4 are ionic complexes with (pretty much) ionic bonds, because the EN difference is over 2.  A compound like PbF4 is more interesting, because it's right on the edge between canonically "ionic" and "covalent" forms.  (EN of Pb is actually higher than that of Sn.)  PbF4 is best described as a polymeric material with highly polar bridging Pb--F--Pb interactions, and we could argue a bit about the degree of covalency vs ionicity.

Depends which Gr 14 element, and which Gr 17 element, because it's easy to pick pairs than run the range of electronegativity differences from nearly zero to above 2, and so a range of bonding from (almost purely) covalent to highly ionic.