What is the oxidation number of tellurium in TeO₃²⁻?
Let Te = x. O = -2. Equation: x + 3(-2) = -2, x - 6 = -2, x = +4.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Redox Titrations and Equivalent Weight and Normality
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In TeO₂ + 2H₂ → Te + 2H₂O, which species is reduced?
TeO₂ (Te: +4 to 0) gains electrons, reduced by H₂ (0 to +1).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Applications of Redox Reactions and Disproportionation
The hybridization of tellurium in TeF₆ is:
In TeF₆ , tellurium has 6 bonding pairs and no lone pairs, requiring sp³d² hybridization, forming an octahedral shape.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Valence Bond Theory and Hybridisation - sp sp2 sp3 dsp2