Advertisements
Advertisements
प्रश्न
Elements of group 14 ________.
विकल्प
exhibit oxidation state of +4 only
exhibit oxidation state of +2 and +4
form M2– and M4+ ions
form M2+ and M4+ ions
उत्तर
Elements of group 14 exhibit oxidation state of +2 and +4.
Explanation:
The elements of group 14 have 4 valence electrons. Therefore, the oxidation state of the group is +4. However, as a result of the inert pair effect, the lower oxidation state becomes more and more stable and the higher oxidation state becomes less stable. Therefore, this group exhibits +4 and +2 oxidation states
| Group 14 element | Oxidation state |
| C | +4 |
| Si | +4 |
| Ge, Sn, Pb | +2, +4 |
APPEARS IN
संबंधित प्रश्न
Discuss the pattern of variation in the oxidation states of C to Pb.
Rationalise the given statement and give a chemical reaction:
Lead (II) chloride reacts with Cl2 to give PbCl4.
Classify the following oxide as neutral, acidic, basic or amphoteric:
CO
Classify the following oxide as neutral, acidic, basic or amphoteric:
B2O3
Classify the following oxide as neutral, acidic, basic or amphoteric:
CO2
Write suitable chemical equations to show the nature of the following oxide.
SiO2
Write suitable chemical equations to show the nature of the following oxide.
CO2
Write suitable chemical equations to show the nature of the following oxide.
Al2O3
Write suitable chemical equations to show the nature of the following oxide.
PbO2
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:
BF3 does not hydrolyse.
Explain the following:
Why does the element silicon, not form a graphite like structure whereas carbon does.
\[\ce{SiCl4 ->[H2O] (A) ->[\Delta] (B) ->[Na2CO3][heat] (C)}\]. The Compound C is ______.
Which one of the following compounds of Group–14 elements is not known?
