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प्रश्न
Write suitable chemical equations to show the nature of the following oxide.
PbO2
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उत्तर
Amphoteric substances react with both acids and bases. PbO2 reacts with both NaOH and H2SO4.
\[\ce{PbO_2 + 2NaOH -> Na_2PbO_3 + H_2O}\]
\[\ce{2PbO_2 + 2H_2SO_4 -> 2PbSO_4 + 2H_2O + O_2}\]
संबंधित प्रश्न
Discuss the pattern of variation in the oxidation states of B to Tl.
Explain the difference in properties of diamond and graphite on the basis of their structures.
Write suitable chemical equations to show the nature of the following oxide.
Tl2O3
Classify the following oxide as neutral, acidic, basic or amphoteric:
CO
Classify the following oxide as neutral, acidic, basic or amphoteric:
SiO2
Classify the following oxide as neutral, acidic, basic or amphoteric:
Al2O3
Classify the following oxide as neutral, acidic, basic or amphoteric:
Tl2O3
Write suitable chemical equations to show the nature of the following oxide.
B2O3
Write suitable chemical equations to show the nature of the following oxide.
Al2O3
Which of the following is a Lewis acid?
Give reasons for the following:
CCl4 is immiscible in water, whereas SiCl4 is easily hydrolysed.
Explain the following:
Silicon forms \[\ce{SiF^{2-}6}\] ion whereas corresponding fluoro compound of carbon is not known.
Explain the following:
CO2 is a gas whereas SiO2 is a solid.
Explain the following:
Why does the element silicon, not form a graphite like structure whereas carbon does.
Stannous chloride solution when kept in the air turns milky due to the formation of ______.
\[\ce{SiCl4 ->[H2O] (A) ->[\Delta] (B) ->[Na2CO3][heat] (C)}\]. The Compound C is ______.
Match List I with List II:
| List I | List II |
| Coke | Carbon atoms are sp3 hybridized. |
| Diamond | Used as a dry lubricant. |
| Fullerene | Used as a reducing agent. |
| Graphite | Cage like molecules |
Choose the correct answer from the options given below:
