Elements of which of the following groups will form anions most readily?
Oxygen family
Nitrogen family
Halogens
Alkali metals
Hypo is used in photography to
reduce AgBr grains to metallic silver
convert metallic silver to silver salt
remove undecomposed silver bromide as a soluble complex
remove reduced silver
Glass is a
liquid
solid
supercooled liquid
transparent-organic polymer
By passing H2S gas in acidified KMnO4 solution, we get
S
K2S
MnO2
K2SO3
A solution of KBr is treated with each of the following. Which one would liberate bromine?
Hydrogen iodide
Sulphur dioxide
Chlorine
Iodine
Among the following, the one which is most basic, is
ZnO
MgO
Al2O3
N2O5
Which of the following compound does not exist?
NCl5
AsF5
SbCl5
PF5
Which one of the following has minimum value of size of cation/anion ratio?
NaCl
KCl
MgCl2
CaF2
Which of the following statements is not correct for nitrogen?
Its electronegativity is very high
d-orbitals are available for bonding
It is a typical non-metal
Its molecular size is small
Which one of the following anions is present in the chain structure silicates?
Si2O
(Si2O2-5)n
(SiO32-)n
SiO
