What is/are oxidation states of gallium? Give its reason also.
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The reason for greater range of oxidation states in actinoids is attributed to :
(2) Minimum or comparable energy gap between 5f, 6d and 7s subshell makes electron excitation easier, hence there is a greater range of oxidation states in actinoids.
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Write the Oxidation state of the following elements: Boron Gallium Indium
a) -3 & +3 b) +3 & +1 c) +3 & +1
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Give reason (a) C and Si are always tetravalent but Ge, Sn, and Pb show divalency. (b) Gallium has higher ionization enthalpy than Al.Explain.
(a) Ge, Sn and Pb show divalency due to inert pair effect, Pb2+is more stable than Pb4+. (b) Due to poor shielding effect of d-electrons in Ga, effective nuclear charge increases...
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Assertion (A): Fluorine being most electronegative element its oxidation state is -1. Reason(R) : Fluorine never shows disproportionate reaction.
(a) Both A and R are true and R is the correct explanation of the A.
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Assertion (A): Oxidation involves loss of electrons. Reason(R) :During oxidation number of an element decreases.
(b)Both A and R are true and R is not the correct explanation of the A.
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Which of the following elements of the Boron Family is the most abundant? a) Aluminium b) Boron c) Gallium
a) Aluminium
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Which of the following elements of the Boron Family is a non-metal? a) Gallium b) Indium
d) Boron of the Boron Family is a non-metal
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Which of the following elements show oxidation state of +3 only? (a)Boron (b)Gallium (c)Indium
(a) Boron elements show oxidation state of +3 only
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Which of the following elements resembles boron the most? (a)Aluminium (b)Gallium
(c)Iron elements resembles boron the most.
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(a) Why Cesium and Gallium melt in our palm?
(a) Some metals are more like liquids. A chip of gallium or caesium melts on our palm because the melting point of these metals is just below thirty degrees Celsius (86oF). They...
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