HF is liquid at room temperature due to…….
a) ionic bond
b) covalent bond
c) hydrogen bond
d) single bond
Halogens react with oxygen and form their respective…….
a) halides
b) hydrides
c) oxides
d) hydroxides
Halogens react with metals and form their respective…….
a) ionic halides
b) hydrides
c) oxides
d) hydroxides
Halogens react with non-metals and form their respective…….
a) covalent halides
b) hydrides
c) oxides
d) hydroxides
Which of the following reacts with lime water to bleaching powder?
a) fluorine
b) chlorine
c) bromine
d) iodine
The formula of bleaching powder is…..
a) CaCl2
b) CaOCl2
c) CaO
d) Ca(OH)2
