Q.1.
Which of the following is used as as an oxidising agent in the laboratory?
Q.2.
Calcium does not combine directly with ...
Q.3.
Anhydrous stanus chloride can be prepared by
Q.4.
Pb and and Sn are extracted for there chief ores by [ IIT 2004 screening]
Q.5.
C(OH)4 is unstable here as Si(OH)4 is stable because
Q.6.
Which of the following is covalent carbide
Q.7.
Which of the following is called sesquioxide
Q.8.
SnO2 used in preparation of
Q.9.
Lead dioxide is obtained when