Which acid will you use to dissolve lead (II) oxide?
Nitric acid. This is because lead nitrate formed is soluble in water. If H2SO4 is used, an insoluble layer of PbSO4 is deposited on the surface of powder and prevents the further reaction. Likewise, PbCl2 prevents the reaction with HCl.
The number S – S bonds in sulphur trioxide trimer, (S3O9) is:
Which is the most thermodynamically stable allotropic form of phosphorus?
Sulphur dioxide bleaches colouring matter by
Which of the following is not hydrolysed?
When Sn is treated with conc. HNO3
Which of the following is highly acidic than others?
Which of the following halogen has highest bond dissociation energy?
One mole of calcium phosphide on reaction with excess water gives:
KF combines with HF to form KHF2. The compound contains the species: