Question

give examples
a. positive radicals
b. basic radicals
c. composite radicals
d. metals with variable valency
e. bivalent acidic radicals
f. trivalent basic radicals​

Answer 1

Answer:

Positive Radicals : Na+, Fe2+,Ag+ Al3+,Cr3+,Fe3+,Au3+,Co2+,Ni2+,Hg2+,Sn2+. ... Metal With Variable Valency : Cu(1+,2+), Hg(1+,2+) ,Fe(2+,3+). e. Bivalent Acidic Radical : S2- ,O2- ,Se2- .

Answer 2

1.The ion that is found in any atom or group of atoms has either positive charge or negative charge. This depends upon the gain and loss of electrons. Examples of positive radicals are Hydrogen, Sodium, Potassium, Ammonium, and Magnesium, Calcium, Zinc and Aluminium

2.Given example of basic radicals are as follows: Na+,Fe2+,Ag+,Al3+,Cr3+,Au3+,Co2+,Ni2+,Hg2+.

3.Given example of composite radicals are as follows: SO42−,NH4+,HCO3−,HSO4−,NO4−

4.Certain elements have more than one valency. They exhibit variable valency. For example, copper, tin, iron and mercury exhibit variable valency. Copper combines with oxygen to form cuprous oxide (Cu2O) and cupric oxide (CuO).

5. Acidic radical are anions which are negatively charged. For example: SO42-, NO3¯, etc. Basic Radicals are cations which are positively charged. For example: Na+, Fe++, .

6.Some example are as Examples of Trivalent basic radicals are: HCI ( acid), CI- (acid radical),HNO3 (acid), NO2 ( ACID .

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