Answer to Question #67338 in Physical Chemistry for Samson

Question

Question 7 : The purest form of silicon dioxide is----
silicates
cristobalite
silibolite
rock crystal
Question 8 : The following are crystaline forms of silica, except------------
tridymite
quartz
cristobalite
Crystaamite
Question 9 : Which of the group V elements give only one oxidation state?
lead
bismouth
phosphorus
nitrogen
Question 10 : Which of the group V oxoacids is manufactured by Ostwald process?
dinitrogen tetraoxide
nitrous oxide
nitric acid
nitrogen hydroxide
Question 11 : Which of these is true of interstitial carbide?
they are non stoichiometric compound
they are soluble compounds
They are binary compounds
they are amorphous compounds
Question 12 : Which of the following is responsible for the easy hydrolysis of lead halides ?
availability of lone pair of electron in P orbital
completely filled d orbitals by electron
Availability of d-orbitals and low bond energy of Pb-H bond
availability of lone pair of electron in d orbital

Answer 1

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