Silicon is the second most abundant element (~27.2%)in the earth's after oxygen (45.5 %) Carbon. Silicon, germanium, tin and lead constitute the group 14 of the periodic table. Chemistry of silicon is distinctly different from that of carbon. For example, under standard conditions CO_(2) is a gas whereas SiO_(2) is a covalent solid. Silicon can be purified by converted it into volatile SiCl_(4)(b.p. 58^(@)C)which is purified by fractional distillation SiCl_(4) can then be converted into Si using molecular hydrogen. Write the balanced equations for the reactions involved. Silicon is widely used in semiconductor industry in which the required is of the order of 1 part per billion. This can be achieved using "zone refining technique". The technique involves moving a heater coil across an impure Si rod.

Silicon is the second most abundant element (~27.2%)in the earth's aft

1.	Silicon is the second most abundant element (~27.2%)in the earth's after oxygen (45.5 %) Carbon. Silicon, germanium, tin and lead constitute the group 14 of the periodic table. Chemistry of silicon is distinctly different from that of carbon. For example, under standard conditions CO_(2) is a gas whereas SiO_(2) is a covalent solid. Silicon can be purified by converted it into volatile SiCl_(4)(b.p. 58^(@)C)which is purified by fractional distillation SiCl_(4) can then be converted into Si using molecular hydrogen. Write the balanced equations for the reactions involved. Silicon is widely used in semiconductor industry in which the required is of the order of 1 part per billion. This can be achieved using "zone refining technique". The technique involves moving a heater coil across an impure Si rod.
Answer» ANSWER :A::B::C::D