Recent questions tagged basics

In Group 13 the first member is

asked Mar 11, 2014 by meena.p

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F ion has smaller size than F atom

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Which of the following configuration is expected to have max different in second and third ionization energy :

asked Mar 11, 2014 by meena.p

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In the periodic table the metallic character of elements:

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In the periodic table Electronegativity of elements :

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With the increase in Atomic number in a period

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1 ev of energy is equivalent to

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Which of the following elements has zero electron affinity ?

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Which of the following never has an oxidation state +1?

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Which of the following elements is a metalloid:

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Which of the following elements has the highest value of electron affinity.

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Which of the following elements has the basic oxide?

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Which of the following elements is expected to have max electro negative?

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Electronegativity of flurine is

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The correct order of ionization energy is :

asked Mar 11, 2014 by meena.p

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A $1.37\; M$ aqueous solution of citric acid ($H_3C_6 H_5O_7$; Molecular Weight = $192.1 g/mol$) has a density of $1.10 g/cm^{3}.$ What is the molality and mole fraction of the citric acid?

asked Feb 13, 2014 by sreemathi.v

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What is the molarity of 0.60N $H_3PO_4$ (a tribasic acid)in the following reaction?$H_3PO_4+2OH^-\rightarrow HPO_4^{2-}+2H_2O$

asked Feb 13, 2014 by sreemathi.v

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What is the normality of 0.20M $H_3PO_4$ (a tribasic acid)in the following reaction?$H_3PO_4+2OH^-\rightarrow HPO_4^{2-}+2H_2O$

asked Feb 13, 2014 by sreemathi.v

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The Van't Hoff factor of $BaCl_2$ is

asked Feb 13, 2014 by sreemathi.v

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When a substance is dissolved in a solvent,the vapour pressure of the solvent is decreased.This result in

asked Feb 13, 2014 by sreemathi.v

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Which of the following is the correct expression for van't Hoff factor?

asked Feb 13, 2014 by sreemathi.v

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When a solute is dissolved in a solvent,the elevation of boiling point of solution is

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Which one of the following aqueous solution will exhibit abnormal osmotic pressure?

asked Feb 13, 2014 by sreemathi.v

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Osmotic pressure of a dilute solution is

asked Feb 13, 2014 by sreemathi.v

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