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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.
Rationalise the given statement and give a chemical reaction:
Lead (II) chloride reacts with Cl2 to give PbCl4.
Explain the following reaction.
Silicon is heated with methyl chloride at high temperature in the presence of copper.
Elements of group 14 ________.
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:
CO2
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.
CO2
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The reason for small radius of Ga compared to Al is:
(i) poor screening effect of d and f orbitals.
(ii) increase in nuclear charge.
(iii) presence of higher orbitals.
(iv) higher atomic number.
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.
The +1 oxidation state in group 13 and +2 oxidation state in group 14 becomes more and more stable with increasing atomic number. Explain.
Explain the following:
BF3 does not hydrolyse.
Stannous chloride solution when kept in the air turns milky due to the formation of ______.
