CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

Which of the following can not react directly with halogens under suitable conditions?

A
C
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Si
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Ge
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Pb
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A C
Except C all other elements of group 14 react directly with halogen under suitable conditions to form halides of formula MX2 and MX4.
Hence, the correct answer is option (a).

THEORY
Reactivity towards oxygen:
All members when heated in oxygen form oxides
The acidity of oxides in higher oxidation states is greater than the acidity of oxides
in lower oxidation states.
CO2,SiO2 and GeO2 are acidic in nature. SnO2 and PbO2 are amphoteric in nature. GeO is acidic, CO is neutral. SnO and PbO are amphoteric in nature.

Reactivity towards water:
Carbon, silicon, and germanium are not affected by water.
Tin decomposes steam to form dioxide and dihydrogen gas.
Sn+2H2OSnO2+2H2
Lead is unaffected by water, due to the protective oxide film formation.

Reactivity towards halogen:
These elements can form halides of formula MX2 and MX4 where X = F, Cl, Br, I
Except for C, all other elements react directly with halogen under suitable conditions to form halides.
Except SnF4 & PbF4 most of the MX4 are covalent in nature.
The central atom in the halides is sp3 hybridized and the molecule is tetrahedral in shape.
PbI4 doesn’t exist.

flag
Suggest Corrections
thumbs-up
0
mid-banner-image
mid-banner-image
similar_icon
Related Videos
thumbnail
lock
Chemical Properties of Carbon Family
CHEMISTRY
Watch in App