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Ions which have the same electronic configuration are those of:
(1) Lithium and sodium
(2) Sodium and potassium
(3) Potassium and calcium
(4) Oxygen and chlorine
Ans: Potassium and calcium
Q. Describe about states of matter? Under usual conditions matter exists in three different physical forms called the states of matter -solid or liquid or gas. Solid matter
sources of errors in thermogravimetry
A 4.00-g sample of iodine was reacted completely with excess bromine. The mass of the compound formed was 11.56-g. Determine the empirical formula.
What is thories of indicators
Examples
Composition of Nucleic acids Nucleic acids such as proteins and carbohydrates are polymer. The simple units which make up the nucleic acid are known as nucleotides. Nucleotides
Acidic character order of phenon , ortho nitro phinol, para nitro phenol#
Q. What do you mean by sensory perception? The appearance of a food can be evaluated in terms of colour, surface characteristics such as smoothness of a surface, dry surface, g
characteristics
Calculate the theoretical voltage of the following galvanic cell: Ni|10^-3 mol/l Ni(NO3)2 || 1 mol/l AgNO3|Ag. Write the equations for the half reactions of this cell.
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